Home / 1,302,920.80-1,954,381.20-831,695.20

Finding the Fourth Proportional to 1,302,920.80, 1,954,381.20 and 831,695.20

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Solution

The fourth proportional to 1,302,920.80, 1,954,381.20 and 831,695.20 is: 1,247,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,920.80 : 1,954,381.20 = 831,695.20 : x
  2. Step 2: Convert to fraction form
    1,302,920.80/1,954,381.20 = 831,695.20/x
  3. Step 3: Cross multiply
    1,302,920.80x = 1,954,381.20 × 831,695.20
  4. Step 4: Simplify right side
    1,302,920.80x = 1,625,449,463,010.24
  5. Step 5: Solve for x
    x = 1,625,449,463,010.24/1,302,920.80
  6. Step 6: Final answer
    x = 1,247,542.80

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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.