Home / 842,891.40-1,264,337.10-559,456.20

Finding the Fourth Proportional to 842,891.40, 1,264,337.10 and 559,456.20

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Solution

The fourth proportional to 842,891.40, 1,264,337.10 and 559,456.20 is: 839,184.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,891.40 : 1,264,337.10 = 559,456.20 : x
  2. Step 2: Convert to fraction form
    842,891.40/1,264,337.10 = 559,456.20/x
  3. Step 3: Cross multiply
    842,891.40x = 1,264,337.10 × 559,456.20
  4. Step 4: Simplify right side
    842,891.40x = 707,341,229,485.02
  5. Step 5: Solve for x
    x = 707,341,229,485.02/842,891.40
  6. Step 6: Final answer
    x = 839,184.30

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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.