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Finding the Fourth Proportional to 615,919.80, 924,225.30 and 260,873.40

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Solution

The fourth proportional to 615,919.80, 924,225.30 and 260,873.40 is: 391,456.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,919.80 : 924,225.30 = 260,873.40 : x
  2. Step 2: Convert to fraction form
    615,919.80/924,225.30 = 260,873.40/x
  3. Step 3: Cross multiply
    615,919.80x = 924,225.30 × 260,873.40
  4. Step 4: Simplify right side
    615,919.80x = 241,105,796,377.02
  5. Step 5: Solve for x
    x = 241,105,796,377.02/615,919.80
  6. Step 6: Final answer
    x = 391,456.48

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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.