Home / 871,221.54-1,306,785.30-272,113.92

Finding the Fourth Proportional to 871,221.54, 1,306,785.30 and 272,113.92

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Solution

The fourth proportional to 871,221.54, 1,306,785.30 and 272,113.92 is: 408,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,221.54 : 1,306,785.30 = 272,113.92 : x
  2. Step 2: Convert to fraction form
    871,221.54/1,306,785.30 = 272,113.92/x
  3. Step 3: Cross multiply
    871,221.54x = 1,306,785.30 × 272,113.92
  4. Step 4: Simplify right side
    871,221.54x = 355,594,470,581.38
  5. Step 5: Solve for x
    x = 355,594,470,581.38/871,221.54
  6. Step 6: Final answer
    x = 408,156.20

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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.