Home / 1,229,659.40-1,844,489.10-388,211.15

Finding the Fourth Proportional to 1,229,659.40, 1,844,489.10 and 388,211.15

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Solution

The fourth proportional to 1,229,659.40, 1,844,489.10 and 388,211.15 is: 582,316.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,659.40 : 1,844,489.10 = 388,211.15 : x
  2. Step 2: Convert to fraction form
    1,229,659.40/1,844,489.10 = 388,211.15/x
  3. Step 3: Cross multiply
    1,229,659.40x = 1,844,489.10 × 388,211.15
  4. Step 4: Simplify right side
    1,229,659.40x = 716,051,234,673.47
  5. Step 5: Solve for x
    x = 716,051,234,673.47/1,229,659.40
  6. Step 6: Final answer
    x = 582,316.73

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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.