Home / 1,247,687.34-1,721,812.47-674,731.50

Finding the Fourth Proportional to 1,247,687.34, 1,721,812.47 and 674,731.50

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Solution

The fourth proportional to 1,247,687.34, 1,721,812.47 and 674,731.50 is: 931,131.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,687.34 : 1,721,812.47 = 674,731.50 : x
  2. Step 2: Convert to fraction form
    1,247,687.34/1,721,812.47 = 674,731.50/x
  3. Step 3: Cross multiply
    1,247,687.34x = 1,721,812.47 × 674,731.50
  4. Step 4: Simplify right side
    1,247,687.34x = 1,161,761,110,601.81
  5. Step 5: Solve for x
    x = 1,161,761,110,601.81/1,247,687.34
  6. Step 6: Final answer
    x = 931,131.60

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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.