Home / 698,734.20-1,048,101.30-319,654.20

Finding the Fourth Proportional to 698,734.20, 1,048,101.30 and 319,654.20

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Solution

The fourth proportional to 698,734.20, 1,048,101.30 and 319,654.20 is: 479,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,734.20 : 1,048,101.30 = 319,654.20 : x
  2. Step 2: Convert to fraction form
    698,734.20/1,048,101.30 = 319,654.20/x
  3. Step 3: Cross multiply
    698,734.20x = 1,048,101.30 × 319,654.20
  4. Step 4: Simplify right side
    698,734.20x = 335,029,982,570.46
  5. Step 5: Solve for x
    x = 335,029,982,570.46/698,734.20
  6. Step 6: Final answer
    x = 479,481.30

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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.