Home / 485,915.27-729,083.41-261,013.30

Finding the Fourth Proportional to 485,915.27, 729,083.41 and 261,013.30

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Solution

The fourth proportional to 485,915.27, 729,083.41 and 261,013.30 is: 391,633.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,915.27 : 729,083.41 = 261,013.30 : x
  2. Step 2: Convert to fraction form
    485,915.27/729,083.41 = 261,013.30/x
  3. Step 3: Cross multiply
    485,915.27x = 729,083.41 × 261,013.30
  4. Step 4: Simplify right side
    485,915.27x = 190,300,464,344.11
  5. Step 5: Solve for x
    x = 190,300,464,344.11/485,915.27
  6. Step 6: Final answer
    x = 391,633.02

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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.