Home / 1,138,618.17-1,572,617.03-755,980.65

Finding the Fourth Proportional to 1,138,618.17, 1,572,617.03 and 755,980.65

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Solution

The fourth proportional to 1,138,618.17, 1,572,617.03 and 755,980.65 is: 1,044,132.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,618.17 : 1,572,617.03 = 755,980.65 : x
  2. Step 2: Convert to fraction form
    1,138,618.17/1,572,617.03 = 755,980.65/x
  3. Step 3: Cross multiply
    1,138,618.17x = 1,572,617.03 × 755,980.65
  4. Step 4: Simplify right side
    1,138,618.17x = 1,188,868,040,760.57
  5. Step 5: Solve for x
    x = 1,188,868,040,760.57/1,138,618.17
  6. Step 6: Final answer
    x = 1,044,132.33

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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.