Home / 890,998.80-1,336,498.20-572,134.20

Finding the Fourth Proportional to 890,998.80, 1,336,498.20 and 572,134.20

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Solution

The fourth proportional to 890,998.80, 1,336,498.20 and 572,134.20 is: 858,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,998.80 : 1,336,498.20 = 572,134.20 : x
  2. Step 2: Convert to fraction form
    890,998.80/1,336,498.20 = 572,134.20/x
  3. Step 3: Cross multiply
    890,998.80x = 1,336,498.20 × 572,134.20
  4. Step 4: Simplify right side
    890,998.80x = 764,656,328,458.44
  5. Step 5: Solve for x
    x = 764,656,328,458.44/890,998.80
  6. Step 6: Final answer
    x = 858,201.30

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Half scale
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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.