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Finding the Fourth Proportional to 452,647.80, 679,490.10 and 265,764.60

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Solution

The fourth proportional to 452,647.80, 679,490.10 and 265,764.60 is: 398,951.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,647.80 : 679,490.10 = 265,764.60 : x
  2. Step 2: Convert to fraction form
    452,647.80/679,490.10 = 265,764.60/x
  3. Step 3: Cross multiply
    452,647.80x = 679,490.10 × 265,764.60
  4. Step 4: Simplify right side
    452,647.80x = 180,584,414,630.46
  5. Step 5: Solve for x
    x = 180,584,414,630.46/452,647.80
  6. Step 6: Final answer
    x = 398,951.27

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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.