Home / 399,029.23-598,644.11-114,720.31

Finding the Fourth Proportional to 399,029.23, 598,644.11 and 114,720.31

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Solution

The fourth proportional to 399,029.23, 598,644.11 and 114,720.31 is: 172,109.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,029.23 : 598,644.11 = 114,720.31 : x
  2. Step 2: Convert to fraction form
    399,029.23/598,644.11 = 114,720.31/x
  3. Step 3: Cross multiply
    399,029.23x = 598,644.11 × 114,720.31
  4. Step 4: Simplify right side
    399,029.23x = 68,676,637,878.87
  5. Step 5: Solve for x
    x = 68,676,637,878.87/399,029.23
  6. Step 6: Final answer
    x = 172,109.29

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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.