Home / 998,521.80-1,497,782.70-979,859.40

Finding the Fourth Proportional to 998,521.80, 1,497,782.70 and 979,859.40

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Solution

The fourth proportional to 998,521.80, 1,497,782.70 and 979,859.40 is: 1,469,789.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,521.80 : 1,497,782.70 = 979,859.40 : x
  2. Step 2: Convert to fraction form
    998,521.80/1,497,782.70 = 979,859.40/x
  3. Step 3: Cross multiply
    998,521.80x = 1,497,782.70 × 979,859.40
  4. Step 4: Simplify right side
    998,521.80x = 1,467,616,457,752.38
  5. Step 5: Solve for x
    x = 1,467,616,457,752.38/998,521.80
  6. Step 6: Final answer
    x = 1,469,789.10

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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.