Home / 320,819.10-481,228.65-291,294.60

Finding the Fourth Proportional to 320,819.10, 481,228.65 and 291,294.60

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Solution

The fourth proportional to 320,819.10, 481,228.65 and 291,294.60 is: 436,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,819.10 : 481,228.65 = 291,294.60 : x
  2. Step 2: Convert to fraction form
    320,819.10/481,228.65 = 291,294.60/x
  3. Step 3: Cross multiply
    320,819.10x = 481,228.65 × 291,294.60
  4. Step 4: Simplify right side
    320,819.10x = 140,179,307,110.29
  5. Step 5: Solve for x
    x = 140,179,307,110.29/320,819.10
  6. Step 6: Final answer
    x = 436,941.90

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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.