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Finding the Fourth Proportional to 615,520.92, 924,905.06 and 331,421.52

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Solution

The fourth proportional to 615,520.92, 924,905.06 and 331,421.52 is: 498,006.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,520.92 : 924,905.06 = 331,421.52 : x
  2. Step 2: Convert to fraction form
    615,520.92/924,905.06 = 331,421.52/x
  3. Step 3: Cross multiply
    615,520.92x = 924,905.06 × 331,421.52
  4. Step 4: Simplify right side
    615,520.92x = 306,533,440,840.89
  5. Step 5: Solve for x
    x = 306,533,440,840.89/615,520.92
  6. Step 6: Final answer
    x = 498,006.54

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1.5x scale

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.