Home / 393,040.74-589,531.94-140,292.38

Finding the Fourth Proportional to 393,040.74, 589,531.94 and 140,292.38

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Solution

The fourth proportional to 393,040.74, 589,531.94 and 140,292.38 is: 210,428.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,040.74 : 589,531.94 = 140,292.38 : x
  2. Step 2: Convert to fraction form
    393,040.74/589,531.94 = 140,292.38/x
  3. Step 3: Cross multiply
    393,040.74x = 589,531.94 × 140,292.38
  4. Step 4: Simplify right side
    393,040.74x = 82,706,838,948.62
  5. Step 5: Solve for x
    x = 82,706,838,948.62/393,040.74
  6. Step 6: Final answer
    x = 210,428.16

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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.