Home / 729,833.28-1,007,171.38-407,542.38

Finding the Fourth Proportional to 729,833.28, 1,007,171.38 and 407,542.38

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Solution

The fourth proportional to 729,833.28, 1,007,171.38 and 407,542.38 is: 562,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,833.28 : 1,007,171.38 = 407,542.38 : x
  2. Step 2: Convert to fraction form
    729,833.28/1,007,171.38 = 407,542.38/x
  3. Step 3: Cross multiply
    729,833.28x = 1,007,171.38 × 407,542.38
  4. Step 4: Simplify right side
    729,833.28x = 410,465,021,273.08
  5. Step 5: Solve for x
    x = 410,465,021,273.08/729,833.28
  6. Step 6: Final answer
    x = 562,409.30

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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.