Home / 791,333.28-1,092,041.28-428,757.12

Finding the Fourth Proportional to 791,333.28, 1,092,041.28 and 428,757.12

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Solution

The fourth proportional to 791,333.28, 1,092,041.28 and 428,757.12 is: 591,685.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,333.28 : 1,092,041.28 = 428,757.12 : x
  2. Step 2: Convert to fraction form
    791,333.28/1,092,041.28 = 428,757.12/x
  3. Step 3: Cross multiply
    791,333.28x = 1,092,041.28 × 428,757.12
  4. Step 4: Simplify right side
    791,333.28x = 468,220,474,133.91
  5. Step 5: Solve for x
    x = 468,220,474,133.91/791,333.28
  6. Step 6: Final answer
    x = 591,685.56

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Double scale
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1.5x scale

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.