Home / 567,815.40-851,723.10-287,296.20

Finding the Fourth Proportional to 567,815.40, 851,723.10 and 287,296.20

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Solution

The fourth proportional to 567,815.40, 851,723.10 and 287,296.20 is: 430,944.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,815.40 : 851,723.10 = 287,296.20 : x
  2. Step 2: Convert to fraction form
    567,815.40/851,723.10 = 287,296.20/x
  3. Step 3: Cross multiply
    567,815.40x = 851,723.10 × 287,296.20
  4. Step 4: Simplify right side
    567,815.40x = 244,696,810,082.22
  5. Step 5: Solve for x
    x = 244,696,810,082.22/567,815.40
  6. Step 6: Final answer
    x = 430,944.30

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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.