Home / 787,445.10-1,181,167.65-218,825.10

Finding the Fourth Proportional to 787,445.10, 1,181,167.65 and 218,825.10

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Solution

The fourth proportional to 787,445.10, 1,181,167.65 and 218,825.10 is: 328,237.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,445.10 : 1,181,167.65 = 218,825.10 : x
  2. Step 2: Convert to fraction form
    787,445.10/1,181,167.65 = 218,825.10/x
  3. Step 3: Cross multiply
    787,445.10x = 1,181,167.65 × 218,825.10
  4. Step 4: Simplify right side
    787,445.10x = 258,469,129,128.02
  5. Step 5: Solve for x
    x = 258,469,129,128.02/787,445.10
  6. Step 6: Final answer
    x = 328,237.65

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Double scale
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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.