Home / 1,115,217.92-1,538,950.56-631,773.20

Finding the Fourth Proportional to 1,115,217.92, 1,538,950.56 and 631,773.20

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Solution

The fourth proportional to 1,115,217.92, 1,538,950.56 and 631,773.20 is: 871,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,217.92 : 1,538,950.56 = 631,773.20 : x
  2. Step 2: Convert to fraction form
    1,115,217.92/1,538,950.56 = 631,773.20/x
  3. Step 3: Cross multiply
    1,115,217.92x = 1,538,950.56 × 631,773.20
  4. Step 4: Simplify right side
    1,115,217.92x = 972,267,712,238.24
  5. Step 5: Solve for x
    x = 972,267,712,238.24/1,115,217.92
  6. Step 6: Final answer
    x = 871,818.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.