Home / 1,321,329.47-1,982,289.54-422,825.15

Finding the Fourth Proportional to 1,321,329.47, 1,982,289.54 and 422,825.15

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Solution

The fourth proportional to 1,321,329.47, 1,982,289.54 and 422,825.15 is: 634,332.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,329.47 : 1,982,289.54 = 422,825.15 : x
  2. Step 2: Convert to fraction form
    1,321,329.47/1,982,289.54 = 422,825.15/x
  3. Step 3: Cross multiply
    1,321,329.47x = 1,982,289.54 × 422,825.15
  4. Step 4: Simplify right side
    1,321,329.47x = 838,161,862,182.48
  5. Step 5: Solve for x
    x = 838,161,862,182.48/1,321,329.47
  6. Step 6: Final answer
    x = 634,332.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.