Home / 1,240,734.30-1,861,101.45-492,780.30

Finding the Fourth Proportional to 1,240,734.30, 1,861,101.45 and 492,780.30

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Solution

The fourth proportional to 1,240,734.30, 1,861,101.45 and 492,780.30 is: 739,170.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,734.30 : 1,861,101.45 = 492,780.30 : x
  2. Step 2: Convert to fraction form
    1,240,734.30/1,861,101.45 = 492,780.30/x
  3. Step 3: Cross multiply
    1,240,734.30x = 1,861,101.45 × 492,780.30
  4. Step 4: Simplify right side
    1,240,734.30x = 917,114,130,861.44
  5. Step 5: Solve for x
    x = 917,114,130,861.44/1,240,734.30
  6. Step 6: Final answer
    x = 739,170.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.