Home / 445,319.12-666,871.20-311,573.24

Finding the Fourth Proportional to 445,319.12, 666,871.20 and 311,573.24

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Solution

The fourth proportional to 445,319.12, 666,871.20 and 311,573.24 is: 466,585.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,319.12 : 666,871.20 = 311,573.24 : x
  2. Step 2: Convert to fraction form
    445,319.12/666,871.20 = 311,573.24/x
  3. Step 3: Cross multiply
    445,319.12x = 666,871.20 × 311,573.24
  4. Step 4: Simplify right side
    445,319.12x = 207,779,220,446.69
  5. Step 5: Solve for x
    x = 207,779,220,446.69/445,319.12
  6. Step 6: Final answer
    x = 466,585.00

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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.