Home / 399,222.20-598,833.32-318,884.02

Finding the Fourth Proportional to 399,222.20, 598,833.32 and 318,884.02

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Solution

The fourth proportional to 399,222.20, 598,833.32 and 318,884.02 is: 478,326.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,222.20 : 598,833.32 = 318,884.02 : x
  2. Step 2: Convert to fraction form
    399,222.20/598,833.32 = 318,884.02/x
  3. Step 3: Cross multiply
    399,222.20x = 598,833.32 × 318,884.02
  4. Step 4: Simplify right side
    399,222.20x = 190,958,376,391.55
  5. Step 5: Solve for x
    x = 190,958,376,391.55/399,222.20
  6. Step 6: Final answer
    x = 478,326.05

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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.