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Finding the Fourth Proportional to 636,209.08, 955,576.54 and 380,534.20

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Solution

The fourth proportional to 636,209.08, 955,576.54 and 380,534.20 is: 571,556.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,209.08 : 955,576.54 = 380,534.20 : x
  2. Step 2: Convert to fraction form
    636,209.08/955,576.54 = 380,534.20/x
  3. Step 3: Cross multiply
    636,209.08x = 955,576.54 × 380,534.20
  4. Step 4: Simplify right side
    636,209.08x = 363,629,554,187.67
  5. Step 5: Solve for x
    x = 363,629,554,187.67/636,209.08
  6. Step 6: Final answer
    x = 571,556.69

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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.