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Finding the Fourth Proportional to 1,321,747.24, 1,824,101.40 and 748,792.12

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Solution

The fourth proportional to 1,321,747.24, 1,824,101.40 and 748,792.12 is: 1,033,384.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,747.24 : 1,824,101.40 = 748,792.12 : x
  2. Step 2: Convert to fraction form
    1,321,747.24/1,824,101.40 = 748,792.12/x
  3. Step 3: Cross multiply
    1,321,747.24x = 1,824,101.40 × 748,792.12
  4. Step 4: Simplify right side
    1,321,747.24x = 1,365,872,754,400.97
  5. Step 5: Solve for x
    x = 1,365,872,754,400.97/1,321,747.24
  6. Step 6: Final answer
    x = 1,033,384.23

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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.