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Finding the Fourth Proportional to 657,052.73, 906,926.68 and 385,179.47

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Solution

The fourth proportional to 657,052.73, 906,926.68 and 385,179.47 is: 531,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,052.73 : 906,926.68 = 385,179.47 : x
  2. Step 2: Convert to fraction form
    657,052.73/906,926.68 = 385,179.47/x
  3. Step 3: Cross multiply
    657,052.73x = 906,926.68 × 385,179.47
  4. Step 4: Simplify right side
    657,052.73x = 349,329,534,920.39
  5. Step 5: Solve for x
    x = 349,329,534,920.39/657,052.73
  6. Step 6: Final answer
    x = 531,661.34

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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.