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Finding the Fourth Proportional to 657,633.92, 907,532.88 and 371,153.12

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Solution

The fourth proportional to 657,633.92, 907,532.88 and 371,153.12 is: 512,190.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,633.92 : 907,532.88 = 371,153.12 : x
  2. Step 2: Convert to fraction form
    657,633.92/907,532.88 = 371,153.12/x
  3. Step 3: Cross multiply
    657,633.92x = 907,532.88 × 371,153.12
  4. Step 4: Simplify right side
    657,633.92x = 336,833,659,914.59
  5. Step 5: Solve for x
    x = 336,833,659,914.59/657,633.92
  6. Step 6: Final answer
    x = 512,190.22

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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.