Home / 804,959.90-1,207,439.85-521,524.70

Finding the Fourth Proportional to 804,959.90, 1,207,439.85 and 521,524.70

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Solution

The fourth proportional to 804,959.90, 1,207,439.85 and 521,524.70 is: 782,287.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,959.90 : 1,207,439.85 = 521,524.70 : x
  2. Step 2: Convert to fraction form
    804,959.90/1,207,439.85 = 521,524.70/x
  3. Step 3: Cross multiply
    804,959.90x = 1,207,439.85 × 521,524.70
  4. Step 4: Simplify right side
    804,959.90x = 629,709,705,539.30
  5. Step 5: Solve for x
    x = 629,709,705,539.30/804,959.90
  6. Step 6: Final answer
    x = 782,287.05

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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.