Home / 858,342.60-1,287,513.90-227,320.20

Finding the Fourth Proportional to 858,342.60, 1,287,513.90 and 227,320.20

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Solution

The fourth proportional to 858,342.60, 1,287,513.90 and 227,320.20 is: 340,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,342.60 : 1,287,513.90 = 227,320.20 : x
  2. Step 2: Convert to fraction form
    858,342.60/1,287,513.90 = 227,320.20/x
  3. Step 3: Cross multiply
    858,342.60x = 1,287,513.90 × 227,320.20
  4. Step 4: Simplify right side
    858,342.60x = 292,677,917,250.78
  5. Step 5: Solve for x
    x = 292,677,917,250.78/858,342.60
  6. Step 6: Final answer
    x = 340,980.30

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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.