Home / 843,819.12-1,265,592.51-311,590.80

Finding the Fourth Proportional to 843,819.12, 1,265,592.51 and 311,590.80

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Solution

The fourth proportional to 843,819.12, 1,265,592.51 and 311,590.80 is: 467,335.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,819.12 : 1,265,592.51 = 311,590.80 : x
  2. Step 2: Convert to fraction form
    843,819.12/1,265,592.51 = 311,590.80/x
  3. Step 3: Cross multiply
    843,819.12x = 1,265,592.51 × 311,590.80
  4. Step 4: Simplify right side
    843,819.12x = 394,346,982,664.91
  5. Step 5: Solve for x
    x = 394,346,982,664.91/843,819.12
  6. Step 6: Final answer
    x = 467,335.92

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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.