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Finding the Fourth Proportional to 613,738, 920,618.52 and 170,517.52

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Solution

The fourth proportional to 613,738, 920,618.52 and 170,517.52 is: 255,779.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,738 : 920,618.52 = 170,517.52 : x
  2. Step 2: Convert to fraction form
    613,738/920,618.52 = 170,517.52/x
  3. Step 3: Cross multiply
    613,738x = 920,618.52 × 170,517.52
  4. Step 4: Simplify right side
    613,738x = 156,981,586,896.47
  5. Step 5: Solve for x
    x = 156,981,586,896.47/613,738
  6. Step 6: Final answer
    x = 255,779.48

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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.