Home / 998,147.10-1,497,220.65-288,198.30

Finding the Fourth Proportional to 998,147.10, 1,497,220.65 and 288,198.30

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Solution

The fourth proportional to 998,147.10, 1,497,220.65 and 288,198.30 is: 432,297.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,147.10 : 1,497,220.65 = 288,198.30 : x
  2. Step 2: Convert to fraction form
    998,147.10/1,497,220.65 = 288,198.30/x
  3. Step 3: Cross multiply
    998,147.10x = 1,497,220.65 × 288,198.30
  4. Step 4: Simplify right side
    998,147.10x = 431,496,446,054.90
  5. Step 5: Solve for x
    x = 431,496,446,054.90/998,147.10
  6. Step 6: Final answer
    x = 432,297.45

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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.