Home / 998,429.80-1,497,863.40-399,240.40

Finding the Fourth Proportional to 998,429.80, 1,497,863.40 and 399,240.40

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Solution

The fourth proportional to 998,429.80, 1,497,863.40 and 399,240.40 is: 598,948.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,429.80 : 1,497,863.40 = 399,240.40 : x
  2. Step 2: Convert to fraction form
    998,429.80/1,497,863.40 = 399,240.40/x
  3. Step 3: Cross multiply
    998,429.80x = 1,497,863.40 × 399,240.40
  4. Step 4: Simplify right side
    998,429.80x = 598,007,582,961.36
  5. Step 5: Solve for x
    x = 598,007,582,961.36/998,429.80
  6. Step 6: Final answer
    x = 598,948.05

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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.