Home / 843,900.55-1,265,714.39-311,672.23

Finding the Fourth Proportional to 843,900.55, 1,265,714.39 and 311,672.23

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Solution

The fourth proportional to 843,900.55, 1,265,714.39 and 311,672.23 is: 467,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,900.55 : 1,265,714.39 = 311,672.23 : x
  2. Step 2: Convert to fraction form
    843,900.55/1,265,714.39 = 311,672.23/x
  3. Step 3: Cross multiply
    843,900.55x = 1,265,714.39 × 311,672.23
  4. Step 4: Simplify right side
    843,900.55x = 394,488,024,916.03
  5. Step 5: Solve for x
    x = 394,488,024,916.03/843,900.55
  6. Step 6: Final answer
    x = 467,457.95

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Double scale
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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.