Home / 550,217.38-759,290.32-308,499.20

Finding the Fourth Proportional to 550,217.38, 759,290.32 and 308,499.20

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Solution

The fourth proportional to 550,217.38, 759,290.32 and 308,499.20 is: 425,723.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,217.38 : 759,290.32 = 308,499.20 : x
  2. Step 2: Convert to fraction form
    550,217.38/759,290.32 = 308,499.20/x
  3. Step 3: Cross multiply
    550,217.38x = 759,290.32 × 308,499.20
  4. Step 4: Simplify right side
    550,217.38x = 234,240,454,745.25
  5. Step 5: Solve for x
    x = 234,240,454,745.25/550,217.38
  6. Step 6: Final answer
    x = 425,723.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.