Home / 327,878.27-491,055.15-316,513.38

Finding the Fourth Proportional to 327,878.27, 491,055.15 and 316,513.38

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Solution

The fourth proportional to 327,878.27, 491,055.15 and 316,513.38 is: 474,034.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,878.27 : 491,055.15 = 316,513.38 : x
  2. Step 2: Convert to fraction form
    327,878.27/491,055.15 = 316,513.38/x
  3. Step 3: Cross multiply
    327,878.27x = 491,055.15 × 316,513.38
  4. Step 4: Simplify right side
    327,878.27x = 155,425,525,292.91
  5. Step 5: Solve for x
    x = 155,425,525,292.91/327,878.27
  6. Step 6: Final answer
    x = 474,034.24

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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.