Home / 890,701.60-1,229,144.88-482,785.60

Finding the Fourth Proportional to 890,701.60, 1,229,144.88 and 482,785.60

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Solution

The fourth proportional to 890,701.60, 1,229,144.88 and 482,785.60 is: 666,231.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,701.60 : 1,229,144.88 = 482,785.60 : x
  2. Step 2: Convert to fraction form
    890,701.60/1,229,144.88 = 482,785.60/x
  3. Step 3: Cross multiply
    890,701.60x = 1,229,144.88 × 482,785.60
  4. Step 4: Simplify right side
    890,701.60x = 593,413,448,377.73
  5. Step 5: Solve for x
    x = 593,413,448,377.73/890,701.60
  6. Step 6: Final answer
    x = 666,231.48

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.