Home / 998,978.80-1,498,468.20-572,076.40

Finding the Fourth Proportional to 998,978.80, 1,498,468.20 and 572,076.40

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Solution

The fourth proportional to 998,978.80, 1,498,468.20 and 572,076.40 is: 858,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,978.80 : 1,498,468.20 = 572,076.40 : x
  2. Step 2: Convert to fraction form
    998,978.80/1,498,468.20 = 572,076.40/x
  3. Step 3: Cross multiply
    998,978.80x = 1,498,468.20 × 572,076.40
  4. Step 4: Simplify right side
    998,978.80x = 857,238,293,370.48
  5. Step 5: Solve for x
    x = 857,238,293,370.48/998,978.80
  6. Step 6: Final answer
    x = 858,114.60

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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.