Home / 445,020.41-667,549.04-129,477.31

Finding the Fourth Proportional to 445,020.41, 667,549.04 and 129,477.31

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Solution

The fourth proportional to 445,020.41, 667,549.04 and 129,477.31 is: 194,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,020.41 : 667,549.04 = 129,477.31 : x
  2. Step 2: Convert to fraction form
    445,020.41/667,549.04 = 129,477.31/x
  3. Step 3: Cross multiply
    445,020.41x = 667,549.04 × 129,477.31
  4. Step 4: Simplify right side
    445,020.41x = 86,432,455,013.77
  5. Step 5: Solve for x
    x = 86,432,455,013.77/445,020.41
  6. Step 6: Final answer
    x = 194,221.33

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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.