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Finding the Fourth Proportional to 887,734, 1,225,077.24 and 485,326

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Solution

The fourth proportional to 887,734, 1,225,077.24 and 485,326 is: 669,752.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,734 : 1,225,077.24 = 485,326 : x
  2. Step 2: Convert to fraction form
    887,734/1,225,077.24 = 485,326/x
  3. Step 3: Cross multiply
    887,734x = 1,225,077.24 × 485,326
  4. Step 4: Simplify right side
    887,734x = 594,561,836,580.24
  5. Step 5: Solve for x
    x = 594,561,836,580.24/887,734
  6. Step 6: Final answer
    x = 669,752.24

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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.