Home / 1,248,433.66-1,871,863.17-687,861.82

Finding the Fourth Proportional to 1,248,433.66, 1,871,863.17 and 687,861.82

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Solution

The fourth proportional to 1,248,433.66, 1,871,863.17 and 687,861.82 is: 1,031,358.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,433.66 : 1,871,863.17 = 687,861.82 : x
  2. Step 2: Convert to fraction form
    1,248,433.66/1,871,863.17 = 687,861.82/x
  3. Step 3: Cross multiply
    1,248,433.66x = 1,871,863.17 × 687,861.82
  4. Step 4: Simplify right side
    1,248,433.66x = 1,287,583,206,907.17
  5. Step 5: Solve for x
    x = 1,287,583,206,907.17/1,248,433.66
  6. Step 6: Final answer
    x = 1,031,358.93

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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.