Home / 1,172,808.20-1,618,648.98-743,128.34

Finding the Fourth Proportional to 1,172,808.20, 1,618,648.98 and 743,128.34

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Solution

The fourth proportional to 1,172,808.20, 1,618,648.98 and 743,128.34 is: 1,025,627.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,808.20 : 1,618,648.98 = 743,128.34 : x
  2. Step 2: Convert to fraction form
    1,172,808.20/1,618,648.98 = 743,128.34/x
  3. Step 3: Cross multiply
    1,172,808.20x = 1,618,648.98 × 743,128.34
  4. Step 4: Simplify right side
    1,172,808.20x = 1,202,863,929,550.09
  5. Step 5: Solve for x
    x = 1,202,863,929,550.09/1,172,808.20
  6. Step 6: Final answer
    x = 1,025,627.15

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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.