Home / 1,086,641.40-1,629,962.10-288,046.20

Finding the Fourth Proportional to 1,086,641.40, 1,629,962.10 and 288,046.20

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Solution

The fourth proportional to 1,086,641.40, 1,629,962.10 and 288,046.20 is: 432,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,641.40 : 1,629,962.10 = 288,046.20 : x
  2. Step 2: Convert to fraction form
    1,086,641.40/1,629,962.10 = 288,046.20/x
  3. Step 3: Cross multiply
    1,086,641.40x = 1,629,962.10 × 288,046.20
  4. Step 4: Simplify right side
    1,086,641.40x = 469,504,389,049.02
  5. Step 5: Solve for x
    x = 469,504,389,049.02/1,086,641.40
  6. Step 6: Final answer
    x = 432,069.30

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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.