Home / 657,945.68-907,964.04-356,140.88

Finding the Fourth Proportional to 657,945.68, 907,964.04 and 356,140.88

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Solution

The fourth proportional to 657,945.68, 907,964.04 and 356,140.88 is: 491,473.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,945.68 : 907,964.04 = 356,140.88 : x
  2. Step 2: Convert to fraction form
    657,945.68/907,964.04 = 356,140.88/x
  3. Step 3: Cross multiply
    657,945.68x = 907,964.04 × 356,140.88
  4. Step 4: Simplify right side
    657,945.68x = 323,363,112,213.96
  5. Step 5: Solve for x
    x = 323,363,112,213.96/657,945.68
  6. Step 6: Final answer
    x = 491,473.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.