Home / 998,433.76-1,377,839.28-545,724.76

Finding the Fourth Proportional to 998,433.76, 1,377,839.28 and 545,724.76

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Solution

The fourth proportional to 998,433.76, 1,377,839.28 and 545,724.76 is: 753,100.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,433.76 : 1,377,839.28 = 545,724.76 : x
  2. Step 2: Convert to fraction form
    998,433.76/1,377,839.28 = 545,724.76/x
  3. Step 3: Cross multiply
    998,433.76x = 1,377,839.28 × 545,724.76
  4. Step 4: Simplify right side
    998,433.76x = 751,921,010,396.57
  5. Step 5: Solve for x
    x = 751,921,010,396.57/998,433.76
  6. Step 6: Final answer
    x = 753,100.55

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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.