Home / 998,439.90-1,497,659.85-288,491.10

Finding the Fourth Proportional to 998,439.90, 1,497,659.85 and 288,491.10

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Solution

The fourth proportional to 998,439.90, 1,497,659.85 and 288,491.10 is: 432,736.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,439.90 : 1,497,659.85 = 288,491.10 : x
  2. Step 2: Convert to fraction form
    998,439.90/1,497,659.85 = 288,491.10/x
  3. Step 3: Cross multiply
    998,439.90x = 1,497,659.85 × 288,491.10
  4. Step 4: Simplify right side
    998,439.90x = 432,061,537,552.34
  5. Step 5: Solve for x
    x = 432,061,537,552.34/998,439.90
  6. Step 6: Final answer
    x = 432,736.65

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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.