Home / 443,322.20-664,983.30-308,019.80

Finding the Fourth Proportional to 443,322.20, 664,983.30 and 308,019.80

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Solution

The fourth proportional to 443,322.20, 664,983.30 and 308,019.80 is: 462,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,322.20 : 664,983.30 = 308,019.80 : x
  2. Step 2: Convert to fraction form
    443,322.20/664,983.30 = 308,019.80/x
  3. Step 3: Cross multiply
    443,322.20x = 664,983.30 × 308,019.80
  4. Step 4: Simplify right side
    443,322.20x = 204,828,023,069.34
  5. Step 5: Solve for x
    x = 204,828,023,069.34/443,322.20
  6. Step 6: Final answer
    x = 462,029.70

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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.