Home / 998,145.60-1,497,218.40-288,196.80

Finding the Fourth Proportional to 998,145.60, 1,497,218.40 and 288,196.80

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Solution

The fourth proportional to 998,145.60, 1,497,218.40 and 288,196.80 is: 432,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,145.60 : 1,497,218.40 = 288,196.80 : x
  2. Step 2: Convert to fraction form
    998,145.60/1,497,218.40 = 288,196.80/x
  3. Step 3: Cross multiply
    998,145.60x = 1,497,218.40 × 288,196.80
  4. Step 4: Simplify right side
    998,145.60x = 431,493,551,781.12
  5. Step 5: Solve for x
    x = 431,493,551,781.12/998,145.60
  6. Step 6: Final answer
    x = 432,295.20

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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.