Home / 657,943.80-907,963.98-356,138.04

Finding the Fourth Proportional to 657,943.80, 907,963.98 and 356,138.04

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Solution

The fourth proportional to 657,943.80, 907,963.98 and 356,138.04 is: 491,471.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,943.80 : 907,963.98 = 356,138.04 : x
  2. Step 2: Convert to fraction form
    657,943.80/907,963.98 = 356,138.04/x
  3. Step 3: Cross multiply
    657,943.80x = 907,963.98 × 356,138.04
  4. Step 4: Simplify right side
    657,943.80x = 323,360,512,227.80
  5. Step 5: Solve for x
    x = 323,360,512,227.80/657,943.80
  6. Step 6: Final answer
    x = 491,471.33

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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.