Home / 320,810.10-481,215.15-291,285.60

Finding the Fourth Proportional to 320,810.10, 481,215.15 and 291,285.60

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Solution

The fourth proportional to 320,810.10, 481,215.15 and 291,285.60 is: 436,928.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,810.10 : 481,215.15 = 291,285.60 : x
  2. Step 2: Convert to fraction form
    320,810.10/481,215.15 = 291,285.60/x
  3. Step 3: Cross multiply
    320,810.10x = 481,215.15 × 291,285.60
  4. Step 4: Simplify right side
    320,810.10x = 140,171,043,696.84
  5. Step 5: Solve for x
    x = 140,171,043,696.84/320,810.10
  6. Step 6: Final answer
    x = 436,928.40

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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.