Home / 728,274.38-1,092,411.56-229,638.38

Finding the Fourth Proportional to 728,274.38, 1,092,411.56 and 229,638.38

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Solution

The fourth proportional to 728,274.38, 1,092,411.56 and 229,638.38 is: 344,457.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,274.38 : 1,092,411.56 = 229,638.38 : x
  2. Step 2: Convert to fraction form
    728,274.38/1,092,411.56 = 229,638.38/x
  3. Step 3: Cross multiply
    728,274.38x = 1,092,411.56 × 229,638.38
  4. Step 4: Simplify right side
    728,274.38x = 250,859,616,043.71
  5. Step 5: Solve for x
    x = 250,859,616,043.71/728,274.38
  6. Step 6: Final answer
    x = 344,457.56

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.