Home / 888,109.30-1,331,963.02-407,875.42

Finding the Fourth Proportional to 888,109.30, 1,331,963.02 and 407,875.42

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Solution

The fourth proportional to 888,109.30, 1,331,963.02 and 407,875.42 is: 611,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,109.30 : 1,331,963.02 = 407,875.42 : x
  2. Step 2: Convert to fraction form
    888,109.30/1,331,963.02 = 407,875.42/x
  3. Step 3: Cross multiply
    888,109.30x = 1,331,963.02 × 407,875.42
  4. Step 4: Simplify right side
    888,109.30x = 543,274,976,206.97
  5. Step 5: Solve for x
    x = 543,274,976,206.97/888,109.30
  6. Step 6: Final answer
    x = 611,720.85

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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.