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Finding the Fourth Proportional to 888,132.64, 1,225,632.72 and 485,716

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Solution

The fourth proportional to 888,132.64, 1,225,632.72 and 485,716 is: 670,293.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,132.64 : 1,225,632.72 = 485,716 : x
  2. Step 2: Convert to fraction form
    888,132.64/1,225,632.72 = 485,716/x
  3. Step 3: Cross multiply
    888,132.64x = 1,225,632.72 × 485,716
  4. Step 4: Simplify right side
    888,132.64x = 595,309,422,227.52
  5. Step 5: Solve for x
    x = 595,309,422,227.52/888,132.64
  6. Step 6: Final answer
    x = 670,293.37

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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.