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Finding the Fourth Proportional to 489,761.60, 733,864.80 and 410,446.40

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Solution

The fourth proportional to 489,761.60, 733,864.80 and 410,446.40 is: 615,017.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,761.60 : 733,864.80 = 410,446.40 : x
  2. Step 2: Convert to fraction form
    489,761.60/733,864.80 = 410,446.40/x
  3. Step 3: Cross multiply
    489,761.60x = 733,864.80 × 410,446.40
  4. Step 4: Simplify right side
    489,761.60x = 301,212,165,246.72
  5. Step 5: Solve for x
    x = 301,212,165,246.72/489,761.60
  6. Step 6: Final answer
    x = 615,017.93

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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.