Home / 998,439.40-1,497,659.10-288,490.60

Finding the Fourth Proportional to 998,439.40, 1,497,659.10 and 288,490.60

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Solution

The fourth proportional to 998,439.40, 1,497,659.10 and 288,490.60 is: 432,735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,439.40 : 1,497,659.10 = 288,490.60 : x
  2. Step 2: Convert to fraction form
    998,439.40/1,497,659.10 = 288,490.60/x
  3. Step 3: Cross multiply
    998,439.40x = 1,497,659.10 × 288,490.60
  4. Step 4: Simplify right side
    998,439.40x = 432,060,572,354.46
  5. Step 5: Solve for x
    x = 432,060,572,354.46/998,439.40
  6. Step 6: Final answer
    x = 432,735.90

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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.