Home / 998,405.20-1,497,802.20-429,785.20

Finding the Fourth Proportional to 998,405.20, 1,497,802.20 and 429,785.20

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Solution

The fourth proportional to 998,405.20, 1,497,802.20 and 429,785.20 is: 644,761.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,405.20 : 1,497,802.20 = 429,785.20 : x
  2. Step 2: Convert to fraction form
    998,405.20/1,497,802.20 = 429,785.20/x
  3. Step 3: Cross multiply
    998,405.20x = 1,497,802.20 × 429,785.20
  4. Step 4: Simplify right side
    998,405.20x = 643,733,218,087.44
  5. Step 5: Solve for x
    x = 643,733,218,087.44/998,405.20
  6. Step 6: Final answer
    x = 644,761.48

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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.