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Finding the Fourth Proportional to 479,610.40, 718,954.80 and 372,935.20

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Solution

The fourth proportional to 479,610.40, 718,954.80 and 372,935.20 is: 559,044.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,610.40 : 718,954.80 = 372,935.20 : x
  2. Step 2: Convert to fraction form
    479,610.40/718,954.80 = 372,935.20/x
  3. Step 3: Cross multiply
    479,610.40x = 718,954.80 × 372,935.20
  4. Step 4: Simplify right side
    479,610.40x = 268,123,552,128.96
  5. Step 5: Solve for x
    x = 268,123,552,128.96/479,610.40
  6. Step 6: Final answer
    x = 559,044.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.