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Finding the Fourth Proportional to 657,962.73, 907,991.44 and 356,156.73

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Solution

The fourth proportional to 657,962.73, 907,991.44 and 356,156.73 is: 491,497.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,962.73 : 907,991.44 = 356,156.73 : x
  2. Step 2: Convert to fraction form
    657,962.73/907,991.44 = 356,156.73/x
  3. Step 3: Cross multiply
    657,962.73x = 907,991.44 × 356,156.73
  4. Step 4: Simplify right side
    657,962.73x = 323,387,261,248.00
  5. Step 5: Solve for x
    x = 323,387,261,248.00/657,962.73
  6. Step 6: Final answer
    x = 491,497.84

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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.