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Finding the Fourth Proportional to 587,686.78, 881,460.87 and 161,265.72

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Solution

The fourth proportional to 587,686.78, 881,460.87 and 161,265.72 is: 241,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,686.78 : 881,460.87 = 161,265.72 : x
  2. Step 2: Convert to fraction form
    587,686.78/881,460.87 = 161,265.72/x
  3. Step 3: Cross multiply
    587,686.78x = 881,460.87 × 161,265.72
  4. Step 4: Simplify right side
    587,686.78x = 142,149,421,852.38
  5. Step 5: Solve for x
    x = 142,149,421,852.38/587,686.78
  6. Step 6: Final answer
    x = 241,879.56

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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.