Home / 749,487.80-1,124,231.70-188,522.30

Finding the Fourth Proportional to 749,487.80, 1,124,231.70 and 188,522.30

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Solution

The fourth proportional to 749,487.80, 1,124,231.70 and 188,522.30 is: 282,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,487.80 : 1,124,231.70 = 188,522.30 : x
  2. Step 2: Convert to fraction form
    749,487.80/1,124,231.70 = 188,522.30/x
  3. Step 3: Cross multiply
    749,487.80x = 1,124,231.70 × 188,522.30
  4. Step 4: Simplify right side
    749,487.80x = 211,942,745,816.91
  5. Step 5: Solve for x
    x = 211,942,745,816.91/749,487.80
  6. Step 6: Final answer
    x = 282,783.45

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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.