Home / 1,288,329.18-1,932,244.43-389,560.20

Finding the Fourth Proportional to 1,288,329.18, 1,932,244.43 and 389,560.20

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Solution

The fourth proportional to 1,288,329.18, 1,932,244.43 and 389,560.20 is: 584,264.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,329.18 : 1,932,244.43 = 389,560.20 : x
  2. Step 2: Convert to fraction form
    1,288,329.18/1,932,244.43 = 389,560.20/x
  3. Step 3: Cross multiply
    1,288,329.18x = 1,932,244.43 × 389,560.20
  4. Step 4: Simplify right side
    1,288,329.18x = 752,725,524,651.89
  5. Step 5: Solve for x
    x = 752,725,524,651.89/1,288,329.18
  6. Step 6: Final answer
    x = 584,264.90

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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.