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Finding the Fourth Proportional to 615,580.40, 924,148.20 and 331,497.20

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Solution

The fourth proportional to 615,580.40, 924,148.20 and 331,497.20 is: 497,664.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,580.40 : 924,148.20 = 331,497.20 : x
  2. Step 2: Convert to fraction form
    615,580.40/924,148.20 = 331,497.20/x
  3. Step 3: Cross multiply
    615,580.40x = 924,148.20 × 331,497.20
  4. Step 4: Simplify right side
    615,580.40x = 306,352,540,685.04
  5. Step 5: Solve for x
    x = 306,352,540,685.04/615,580.40
  6. Step 6: Final answer
    x = 497,664.55

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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.