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Finding the Fourth Proportional to 454,148.40, 626,677.74 and 279,691

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Solution

The fourth proportional to 454,148.40, 626,677.74 and 279,691 is: 385,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,148.40 : 626,677.74 = 279,691 : x
  2. Step 2: Convert to fraction form
    454,148.40/626,677.74 = 279,691/x
  3. Step 3: Cross multiply
    454,148.40x = 626,677.74 × 279,691
  4. Step 4: Simplify right side
    454,148.40x = 175,276,123,778.34
  5. Step 5: Solve for x
    x = 175,276,123,778.34/454,148.40
  6. Step 6: Final answer
    x = 385,944.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.