Home / 399,315.40-598,827.30-133,084.60

Finding the Fourth Proportional to 399,315.40, 598,827.30 and 133,084.60

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Solution

The fourth proportional to 399,315.40, 598,827.30 and 133,084.60 is: 199,578.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,315.40 : 598,827.30 = 133,084.60 : x
  2. Step 2: Convert to fraction form
    399,315.40/598,827.30 = 133,084.60/x
  3. Step 3: Cross multiply
    399,315.40x = 598,827.30 × 133,084.60
  4. Step 4: Simplify right side
    399,315.40x = 79,694,691,689.58
  5. Step 5: Solve for x
    x = 79,694,691,689.58/399,315.40
  6. Step 6: Final answer
    x = 199,578.31

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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.