Home / 998,431.60-1,497,647.40-992,210.80

Finding the Fourth Proportional to 998,431.60, 1,497,647.40 and 992,210.80

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Solution

The fourth proportional to 998,431.60, 1,497,647.40 and 992,210.80 is: 1,488,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,431.60 : 1,497,647.40 = 992,210.80 : x
  2. Step 2: Convert to fraction form
    998,431.60/1,497,647.40 = 992,210.80/x
  3. Step 3: Cross multiply
    998,431.60x = 1,497,647.40 × 992,210.80
  4. Step 4: Simplify right side
    998,431.60x = 1,485,981,924,871.92
  5. Step 5: Solve for x
    x = 1,485,981,924,871.92/998,431.60
  6. Step 6: Final answer
    x = 1,488,316.20

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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.