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Finding the Fourth Proportional to 636,986.80, 955,326.48 and 187,585.60

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Solution

The fourth proportional to 636,986.80, 955,326.48 and 187,585.60 is: 281,333.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,986.80 : 955,326.48 = 187,585.60 : x
  2. Step 2: Convert to fraction form
    636,986.80/955,326.48 = 187,585.60/x
  3. Step 3: Cross multiply
    636,986.80x = 955,326.48 × 187,585.60
  4. Step 4: Simplify right side
    636,986.80x = 179,205,490,946.69
  5. Step 5: Solve for x
    x = 179,205,490,946.69/636,986.80
  6. Step 6: Final answer
    x = 281,333.13

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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.