Home / 820,286.20-1,230,429.30-584,090.20

Finding the Fourth Proportional to 820,286.20, 1,230,429.30 and 584,090.20

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Solution

The fourth proportional to 820,286.20, 1,230,429.30 and 584,090.20 is: 876,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,286.20 : 1,230,429.30 = 584,090.20 : x
  2. Step 2: Convert to fraction form
    820,286.20/1,230,429.30 = 584,090.20/x
  3. Step 3: Cross multiply
    820,286.20x = 1,230,429.30 × 584,090.20
  4. Step 4: Simplify right side
    820,286.20x = 718,681,695,922.86
  5. Step 5: Solve for x
    x = 718,681,695,922.86/820,286.20
  6. Step 6: Final answer
    x = 876,135.30

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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.