Home / 871,218.54-1,306,780.80-272,110.92

Finding the Fourth Proportional to 871,218.54, 1,306,780.80 and 272,110.92

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Solution

The fourth proportional to 871,218.54, 1,306,780.80 and 272,110.92 is: 408,151.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,218.54 : 1,306,780.80 = 272,110.92 : x
  2. Step 2: Convert to fraction form
    871,218.54/1,306,780.80 = 272,110.92/x
  3. Step 3: Cross multiply
    871,218.54x = 1,306,780.80 × 272,110.92
  4. Step 4: Simplify right side
    871,218.54x = 355,589,325,726.34
  5. Step 5: Solve for x
    x = 355,589,325,726.34/871,218.54
  6. Step 6: Final answer
    x = 408,151.70

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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.