Home / 998,858.88-1,378,430.55-546,149.88

Finding the Fourth Proportional to 998,858.88, 1,378,430.55 and 546,149.88

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Solution

The fourth proportional to 998,858.88, 1,378,430.55 and 546,149.88 is: 753,689.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,858.88 : 1,378,430.55 = 546,149.88 : x
  2. Step 2: Convert to fraction form
    998,858.88/1,378,430.55 = 546,149.88/x
  3. Step 3: Cross multiply
    998,858.88x = 1,378,430.55 × 546,149.88
  4. Step 4: Simplify right side
    998,858.88x = 752,829,679,470.83
  5. Step 5: Solve for x
    x = 752,829,679,470.83/998,858.88
  6. Step 6: Final answer
    x = 753,689.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.