Home / 918,003.10-1,377,004.65-492,850.30

Finding the Fourth Proportional to 918,003.10, 1,377,004.65 and 492,850.30

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Solution

The fourth proportional to 918,003.10, 1,377,004.65 and 492,850.30 is: 739,275.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,003.10 : 1,377,004.65 = 492,850.30 : x
  2. Step 2: Convert to fraction form
    918,003.10/1,377,004.65 = 492,850.30/x
  3. Step 3: Cross multiply
    918,003.10x = 1,377,004.65 × 492,850.30
  4. Step 4: Simplify right side
    918,003.10x = 678,657,154,853.90
  5. Step 5: Solve for x
    x = 678,657,154,853.90/918,003.10
  6. Step 6: Final answer
    x = 739,275.45

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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.