Home / 1,352,789.20-1,865,950.92-869,965.18

Finding the Fourth Proportional to 1,352,789.20, 1,865,950.92 and 869,965.18

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Solution

The fourth proportional to 1,352,789.20, 1,865,950.92 and 869,965.18 is: 1,199,974.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,789.20 : 1,865,950.92 = 869,965.18 : x
  2. Step 2: Convert to fraction form
    1,352,789.20/1,865,950.92 = 869,965.18/x
  3. Step 3: Cross multiply
    1,352,789.20x = 1,865,950.92 × 869,965.18
  4. Step 4: Simplify right side
    1,352,789.20x = 1,623,312,327,988.97
  5. Step 5: Solve for x
    x = 1,623,312,327,988.97/1,352,789.20
  6. Step 6: Final answer
    x = 1,199,974.34

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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.