Home / 1,131,532.95-1,561,133.29-641,449.90

Finding the Fourth Proportional to 1,131,532.95, 1,561,133.29 and 641,449.90

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Solution

The fourth proportional to 1,131,532.95, 1,561,133.29 and 641,449.90 is: 884,984.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,532.95 : 1,561,133.29 = 641,449.90 : x
  2. Step 2: Convert to fraction form
    1,131,532.95/1,561,133.29 = 641,449.90/x
  3. Step 3: Cross multiply
    1,131,532.95x = 1,561,133.29 × 641,449.90
  4. Step 4: Simplify right side
    1,131,532.95x = 1,001,388,792,757.17
  5. Step 5: Solve for x
    x = 1,001,388,792,757.17/1,131,532.95
  6. Step 6: Final answer
    x = 884,984.21

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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.