Home / 1,228,776.76-1,694,307.18-998,704.36

Finding the Fourth Proportional to 1,228,776.76, 1,694,307.18 and 998,704.36

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Solution

The fourth proportional to 1,228,776.76, 1,694,307.18 and 998,704.36 is: 1,377,070.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,776.76 : 1,694,307.18 = 998,704.36 : x
  2. Step 2: Convert to fraction form
    1,228,776.76/1,694,307.18 = 998,704.36/x
  3. Step 3: Cross multiply
    1,228,776.76x = 1,694,307.18 × 998,704.36
  4. Step 4: Simplify right side
    1,228,776.76x = 1,692,111,967,845.30
  5. Step 5: Solve for x
    x = 1,692,111,967,845.30/1,228,776.76
  6. Step 6: Final answer
    x = 1,377,070.29

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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.