Home / 1,087,058.40-1,629,032.40-800,512.80

Finding the Fourth Proportional to 1,087,058.40, 1,629,032.40 and 800,512.80

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Solution

The fourth proportional to 1,087,058.40, 1,629,032.40 and 800,512.80 is: 1,199,623.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,058.40 : 1,629,032.40 = 800,512.80 : x
  2. Step 2: Convert to fraction form
    1,087,058.40/1,629,032.40 = 800,512.80/x
  3. Step 3: Cross multiply
    1,087,058.40x = 1,629,032.40 × 800,512.80
  4. Step 4: Simplify right side
    1,087,058.40x = 1,304,061,287,814.72
  5. Step 5: Solve for x
    x = 1,304,061,287,814.72/1,087,058.40
  6. Step 6: Final answer
    x = 1,199,623.95

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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.