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Finding the Fourth Proportional to 615,794.40, 924,469.20 and 331,711.20

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Solution

The fourth proportional to 615,794.40, 924,469.20 and 331,711.20 is: 497,985.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,794.40 : 924,469.20 = 331,711.20 : x
  2. Step 2: Convert to fraction form
    615,794.40/924,469.20 = 331,711.20/x
  3. Step 3: Cross multiply
    615,794.40x = 924,469.20 × 331,711.20
  4. Step 4: Simplify right side
    615,794.40x = 306,656,787,695.04
  5. Step 5: Solve for x
    x = 306,656,787,695.04/615,794.40
  6. Step 6: Final answer
    x = 497,985.67

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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.