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Finding the Fourth Proportional to 637,892.92, 880,288.14 and 351,406.36

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Solution

The fourth proportional to 637,892.92, 880,288.14 and 351,406.36 is: 484,938.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,892.92 : 880,288.14 = 351,406.36 : x
  2. Step 2: Convert to fraction form
    637,892.92/880,288.14 = 351,406.36/x
  3. Step 3: Cross multiply
    637,892.92x = 880,288.14 × 351,406.36
  4. Step 4: Simplify right side
    637,892.92x = 309,338,851,028.57
  5. Step 5: Solve for x
    x = 309,338,851,028.57/637,892.92
  6. Step 6: Final answer
    x = 484,938.52

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.