Home / 755,129.89-1,132,657.90-281,778.35

Finding the Fourth Proportional to 755,129.89, 1,132,657.90 and 281,778.35

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Solution

The fourth proportional to 755,129.89, 1,132,657.90 and 281,778.35 is: 422,653.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,129.89 : 1,132,657.90 = 281,778.35 : x
  2. Step 2: Convert to fraction form
    755,129.89/1,132,657.90 = 281,778.35/x
  3. Step 3: Cross multiply
    755,129.89x = 1,132,657.90 × 281,778.35
  4. Step 4: Simplify right side
    755,129.89x = 319,158,467,808.73
  5. Step 5: Solve for x
    x = 319,158,467,808.73/755,129.89
  6. Step 6: Final answer
    x = 422,653.73

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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.