Home / 998,979.80-1,498,469.70-572,077.40

Finding the Fourth Proportional to 998,979.80, 1,498,469.70 and 572,077.40

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Solution

The fourth proportional to 998,979.80, 1,498,469.70 and 572,077.40 is: 858,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,979.80 : 1,498,469.70 = 572,077.40 : x
  2. Step 2: Convert to fraction form
    998,979.80/1,498,469.70 = 572,077.40/x
  3. Step 3: Cross multiply
    998,979.80x = 1,498,469.70 × 572,077.40
  4. Step 4: Simplify right side
    998,979.80x = 857,240,649,954.78
  5. Step 5: Solve for x
    x = 857,240,649,954.78/998,979.80
  6. Step 6: Final answer
    x = 858,116.10

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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.