Home / 1,306,494.20-1,959,740.39-408,012.94

Finding the Fourth Proportional to 1,306,494.20, 1,959,740.39 and 408,012.94

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Solution

The fourth proportional to 1,306,494.20, 1,959,740.39 and 408,012.94 is: 612,019.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,494.20 : 1,959,740.39 = 408,012.94 : x
  2. Step 2: Convert to fraction form
    1,306,494.20/1,959,740.39 = 408,012.94/x
  3. Step 3: Cross multiply
    1,306,494.20x = 1,959,740.39 × 408,012.94
  4. Step 4: Simplify right side
    1,306,494.20x = 799,599,426,321.88
  5. Step 5: Solve for x
    x = 799,599,426,321.88/1,306,494.20
  6. Step 6: Final answer
    x = 612,019.12

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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.