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Finding the Fourth Proportional to 572,712.27, 859,065.29 and 140,424.38

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Solution

The fourth proportional to 572,712.27, 859,065.29 and 140,424.38 is: 210,635.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,712.27 : 859,065.29 = 140,424.38 : x
  2. Step 2: Convert to fraction form
    572,712.27/859,065.29 = 140,424.38/x
  3. Step 3: Cross multiply
    572,712.27x = 859,065.29 × 140,424.38
  4. Step 4: Simplify right side
    572,712.27x = 120,633,715,100.54
  5. Step 5: Solve for x
    x = 120,633,715,100.54/572,712.27
  6. Step 6: Final answer
    x = 210,635.81

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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.