Home / 998,015.74-1,498,142.67-399,394.15

Finding the Fourth Proportional to 998,015.74, 1,498,142.67 and 399,394.15

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Solution

The fourth proportional to 998,015.74, 1,498,142.67 and 399,394.15 is: 599,539.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,015.74 : 1,498,142.67 = 399,394.15 : x
  2. Step 2: Convert to fraction form
    998,015.74/1,498,142.67 = 399,394.15/x
  3. Step 3: Cross multiply
    998,015.74x = 1,498,142.67 × 399,394.15
  4. Step 4: Simplify right side
    998,015.74x = 598,349,418,263.38
  5. Step 5: Solve for x
    x = 598,349,418,263.38/998,015.74
  6. Step 6: Final answer
    x = 599,539.06

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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.