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Finding the Fourth Proportional to 615,129.85, 922,251.88 and 377,982.55

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Solution

The fourth proportional to 615,129.85, 922,251.88 and 377,982.55 is: 566,701.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,129.85 : 922,251.88 = 377,982.55 : x
  2. Step 2: Convert to fraction form
    615,129.85/922,251.88 = 377,982.55/x
  3. Step 3: Cross multiply
    615,129.85x = 922,251.88 × 377,982.55
  4. Step 4: Simplify right side
    615,129.85x = 348,595,117,344.69
  5. Step 5: Solve for x
    x = 348,595,117,344.69/615,129.85
  6. Step 6: Final answer
    x = 566,701.68

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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.