Home / 1,247,821.46-1,721,993.61-674,861.63

Finding the Fourth Proportional to 1,247,821.46, 1,721,993.61 and 674,861.63

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Solution

The fourth proportional to 1,247,821.46, 1,721,993.61 and 674,861.63 is: 931,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,821.46 : 1,721,993.61 = 674,861.63 : x
  2. Step 2: Convert to fraction form
    1,247,821.46/1,721,993.61 = 674,861.63/x
  3. Step 3: Cross multiply
    1,247,821.46x = 1,721,993.61 × 674,861.63
  4. Step 4: Simplify right side
    1,247,821.46x = 1,162,107,414,305.06
  5. Step 5: Solve for x
    x = 1,162,107,414,305.06/1,247,821.46
  6. Step 6: Final answer
    x = 931,309.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.