Home / 781,496.12-1,077,954.54-494,717.24

Finding the Fourth Proportional to 781,496.12, 1,077,954.54 and 494,717.24

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Solution

The fourth proportional to 781,496.12, 1,077,954.54 and 494,717.24 is: 682,386.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,496.12 : 1,077,954.54 = 494,717.24 : x
  2. Step 2: Convert to fraction form
    781,496.12/1,077,954.54 = 494,717.24/x
  3. Step 3: Cross multiply
    781,496.12x = 1,077,954.54 × 494,717.24
  4. Step 4: Simplify right side
    781,496.12x = 533,282,694,874.27
  5. Step 5: Solve for x
    x = 533,282,694,874.27/781,496.12
  6. Step 6: Final answer
    x = 682,386.87

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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.