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Finding the Fourth Proportional to 646,672.90, 969,548.55 and 247,159.30

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Solution

The fourth proportional to 646,672.90, 969,548.55 and 247,159.30 is: 370,562.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,672.90 : 969,548.55 = 247,159.30 : x
  2. Step 2: Convert to fraction form
    646,672.90/969,548.55 = 247,159.30/x
  3. Step 3: Cross multiply
    646,672.90x = 969,548.55 × 247,159.30
  4. Step 4: Simplify right side
    646,672.90x = 239,632,940,934.02
  5. Step 5: Solve for x
    x = 239,632,940,934.02/646,672.90
  6. Step 6: Final answer
    x = 370,562.83

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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.