Home / 814,329.72-1,221,494.58-253,252.44

Finding the Fourth Proportional to 814,329.72, 1,221,494.58 and 253,252.44

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Solution

The fourth proportional to 814,329.72, 1,221,494.58 and 253,252.44 is: 379,878.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,329.72 : 1,221,494.58 = 253,252.44 : x
  2. Step 2: Convert to fraction form
    814,329.72/1,221,494.58 = 253,252.44/x
  3. Step 3: Cross multiply
    814,329.72x = 1,221,494.58 × 253,252.44
  4. Step 4: Simplify right side
    814,329.72x = 309,346,482,831.78
  5. Step 5: Solve for x
    x = 309,346,482,831.78/814,329.72
  6. Step 6: Final answer
    x = 379,878.66

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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.