Home / 992,081.12-1,369,363.28-647,969.62

Finding the Fourth Proportional to 992,081.12, 1,369,363.28 and 647,969.62

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Solution

The fourth proportional to 992,081.12, 1,369,363.28 and 647,969.62 is: 894,388.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,081.12 : 1,369,363.28 = 647,969.62 : x
  2. Step 2: Convert to fraction form
    992,081.12/1,369,363.28 = 647,969.62/x
  3. Step 3: Cross multiply
    992,081.12x = 1,369,363.28 × 647,969.62
  4. Step 4: Simplify right side
    992,081.12x = 887,305,804,183.55
  5. Step 5: Solve for x
    x = 887,305,804,183.55/992,081.12
  6. Step 6: Final answer
    x = 894,388.36

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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.