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Finding the Fourth Proportional to 657,881.04, 907,884 and 385,934.88

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Solution

The fourth proportional to 657,881.04, 907,884 and 385,934.88 is: 532,594.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,881.04 : 907,884 = 385,934.88 : x
  2. Step 2: Convert to fraction form
    657,881.04/907,884 = 385,934.88/x
  3. Step 3: Cross multiply
    657,881.04x = 907,884 × 385,934.88
  4. Step 4: Simplify right side
    657,881.04x = 350,384,102,593.92
  5. Step 5: Solve for x
    x = 350,384,102,593.92/657,881.04
  6. Step 6: Final answer
    x = 532,594.92

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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.