Home / 871,516.08-1,307,275.15-272,480.38

Finding the Fourth Proportional to 871,516.08, 1,307,275.15 and 272,480.38

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Solution

The fourth proportional to 871,516.08, 1,307,275.15 and 272,480.38 is: 408,720.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,516.08 : 1,307,275.15 = 272,480.38 : x
  2. Step 2: Convert to fraction form
    871,516.08/1,307,275.15 = 272,480.38/x
  3. Step 3: Cross multiply
    871,516.08x = 1,307,275.15 × 272,480.38
  4. Step 4: Simplify right side
    871,516.08x = 356,206,829,874.78
  5. Step 5: Solve for x
    x = 356,206,829,874.78/871,516.08
  6. Step 6: Final answer
    x = 408,720.89

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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.