Home / 998,701.80-1,498,052.70-861,844.20

Finding the Fourth Proportional to 998,701.80, 1,498,052.70 and 861,844.20

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Solution

The fourth proportional to 998,701.80, 1,498,052.70 and 861,844.20 is: 1,292,766.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,701.80 : 1,498,052.70 = 861,844.20 : x
  2. Step 2: Convert to fraction form
    998,701.80/1,498,052.70 = 861,844.20/x
  3. Step 3: Cross multiply
    998,701.80x = 1,498,052.70 × 861,844.20
  4. Step 4: Simplify right side
    998,701.80x = 1,291,088,030,789.34
  5. Step 5: Solve for x
    x = 1,291,088,030,789.34/998,701.80
  6. Step 6: Final answer
    x = 1,292,766.30

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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.