Home / 1,422,760.16-1,963,471.92-819,342.56

Finding the Fourth Proportional to 1,422,760.16, 1,963,471.92 and 819,342.56

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Solution

The fourth proportional to 1,422,760.16, 1,963,471.92 and 819,342.56 is: 1,130,728.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,760.16 : 1,963,471.92 = 819,342.56 : x
  2. Step 2: Convert to fraction form
    1,422,760.16/1,963,471.92 = 819,342.56/x
  3. Step 3: Cross multiply
    1,422,760.16x = 1,963,471.92 × 819,342.56
  4. Step 4: Simplify right side
    1,422,760.16x = 1,608,756,109,420.92
  5. Step 5: Solve for x
    x = 1,608,756,109,420.92/1,422,760.16
  6. Step 6: Final answer
    x = 1,130,728.96

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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.