Home / 751,569.30-1,127,353.95-219,144.15

Finding the Fourth Proportional to 751,569.30, 1,127,353.95 and 219,144.15

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Solution

The fourth proportional to 751,569.30, 1,127,353.95 and 219,144.15 is: 328,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,569.30 : 1,127,353.95 = 219,144.15 : x
  2. Step 2: Convert to fraction form
    751,569.30/1,127,353.95 = 219,144.15/x
  3. Step 3: Cross multiply
    751,569.30x = 1,127,353.95 × 219,144.15
  4. Step 4: Simplify right side
    751,569.30x = 247,053,023,121.89
  5. Step 5: Solve for x
    x = 247,053,023,121.89/751,569.30
  6. Step 6: Final answer
    x = 328,716.23

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Double scale
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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.