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Finding the Fourth Proportional to 615,498.05, 924,870.74 and 331,398.65

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Solution

The fourth proportional to 615,498.05, 924,870.74 and 331,398.65 is: 497,972.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,498.05 : 924,870.74 = 331,398.65 : x
  2. Step 2: Convert to fraction form
    615,498.05/924,870.74 = 331,398.65/x
  3. Step 3: Cross multiply
    615,498.05x = 924,870.74 × 331,398.65
  4. Step 4: Simplify right side
    615,498.05x = 306,500,915,315.69
  5. Step 5: Solve for x
    x = 306,500,915,315.69/615,498.05
  6. Step 6: Final answer
    x = 497,972.19

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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.