Home / 1,021,422.98-1,520,076.62-987,367.14

Finding the Fourth Proportional to 1,021,422.98, 1,520,076.62 and 987,367.14

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Solution

The fourth proportional to 1,021,422.98, 1,520,076.62 and 987,367.14 is: 1,469,394.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,422.98 : 1,520,076.62 = 987,367.14 : x
  2. Step 2: Convert to fraction form
    1,021,422.98/1,520,076.62 = 987,367.14/x
  3. Step 3: Cross multiply
    1,021,422.98x = 1,520,076.62 × 987,367.14
  4. Step 4: Simplify right side
    1,021,422.98x = 1,500,873,704,870.27
  5. Step 5: Solve for x
    x = 1,500,873,704,870.27/1,021,422.98
  6. Step 6: Final answer
    x = 1,469,394.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.