Home / 1,146,507.06-1,720,005.24-388,321.98

Finding the Fourth Proportional to 1,146,507.06, 1,720,005.24 and 388,321.98

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Solution

The fourth proportional to 1,146,507.06, 1,720,005.24 and 388,321.98 is: 582,565.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,507.06 : 1,720,005.24 = 388,321.98 : x
  2. Step 2: Convert to fraction form
    1,146,507.06/1,720,005.24 = 388,321.98/x
  3. Step 3: Cross multiply
    1,146,507.06x = 1,720,005.24 × 388,321.98
  4. Step 4: Simplify right side
    1,146,507.06x = 667,915,840,407.18
  5. Step 5: Solve for x
    x = 667,915,840,407.18/1,146,507.06
  6. Step 6: Final answer
    x = 582,565.83

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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.