Home / 445,317.12-666,868.20-311,571.24

Finding the Fourth Proportional to 445,317.12, 666,868.20 and 311,571.24

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Solution

The fourth proportional to 445,317.12, 666,868.20 and 311,571.24 is: 466,582.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,317.12 : 666,868.20 = 311,571.24 : x
  2. Step 2: Convert to fraction form
    445,317.12/666,868.20 = 311,571.24/x
  3. Step 3: Cross multiply
    445,317.12x = 666,868.20 × 311,571.24
  4. Step 4: Simplify right side
    445,317.12x = 207,776,951,990.57
  5. Step 5: Solve for x
    x = 207,776,951,990.57/445,317.12
  6. Step 6: Final answer
    x = 466,582.00

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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.