Home / 891,029.10-1,336,543.65-259,860.90

Finding the Fourth Proportional to 891,029.10, 1,336,543.65 and 259,860.90

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Solution

The fourth proportional to 891,029.10, 1,336,543.65 and 259,860.90 is: 389,791.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,029.10 : 1,336,543.65 = 259,860.90 : x
  2. Step 2: Convert to fraction form
    891,029.10/1,336,543.65 = 259,860.90/x
  3. Step 3: Cross multiply
    891,029.10x = 1,336,543.65 × 259,860.90
  4. Step 4: Simplify right side
    891,029.10x = 347,315,435,778.29
  5. Step 5: Solve for x
    x = 347,315,435,778.29/891,029.10
  6. Step 6: Final answer
    x = 389,791.35

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Similar ratio
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1.5x scale

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.