Home / 869,667.20-1,304,500.80-372,003.20

Finding the Fourth Proportional to 869,667.20, 1,304,500.80 and 372,003.20

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Solution

The fourth proportional to 869,667.20, 1,304,500.80 and 372,003.20 is: 558,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,667.20 : 1,304,500.80 = 372,003.20 : x
  2. Step 2: Convert to fraction form
    869,667.20/1,304,500.80 = 372,003.20/x
  3. Step 3: Cross multiply
    869,667.20x = 1,304,500.80 × 372,003.20
  4. Step 4: Simplify right side
    869,667.20x = 485,278,472,002.56
  5. Step 5: Solve for x
    x = 485,278,472,002.56/869,667.20
  6. Step 6: Final answer
    x = 558,004.80

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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.