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Finding the Fourth Proportional to 657,561.62, 907,435.24 and 371,142.38

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Solution

The fourth proportional to 657,561.62, 907,435.24 and 371,142.38 is: 512,176.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,561.62 : 907,435.24 = 371,142.38 : x
  2. Step 2: Convert to fraction form
    657,561.62/907,435.24 = 371,142.38/x
  3. Step 3: Cross multiply
    657,561.62x = 907,435.24 × 371,142.38
  4. Step 4: Simplify right side
    657,561.62x = 336,787,674,669.47
  5. Step 5: Solve for x
    x = 336,787,674,669.47/657,561.62
  6. Step 6: Final answer
    x = 512,176.60

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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.