Home / 1,306,495.11-1,959,741.76-408,013.85

Finding the Fourth Proportional to 1,306,495.11, 1,959,741.76 and 408,013.85

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Solution

The fourth proportional to 1,306,495.11, 1,959,741.76 and 408,013.85 is: 612,020.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,495.11 : 1,959,741.76 = 408,013.85 : x
  2. Step 2: Convert to fraction form
    1,306,495.11/1,959,741.76 = 408,013.85/x
  3. Step 3: Cross multiply
    1,306,495.11x = 1,959,741.76 × 408,013.85
  4. Step 4: Simplify right side
    1,306,495.11x = 799,601,770,704.67
  5. Step 5: Solve for x
    x = 799,601,770,704.67/1,306,495.11
  6. Step 6: Final answer
    x = 612,020.48

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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.