Home / 881,272.50-1,216,163.34-478,864.50

Finding the Fourth Proportional to 881,272.50, 1,216,163.34 and 478,864.50

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Solution

The fourth proportional to 881,272.50, 1,216,163.34 and 478,864.50 is: 660,836.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,272.50 : 1,216,163.34 = 478,864.50 : x
  2. Step 2: Convert to fraction form
    881,272.50/1,216,163.34 = 478,864.50/x
  3. Step 3: Cross multiply
    881,272.50x = 1,216,163.34 × 478,864.50
  4. Step 4: Simplify right side
    881,272.50x = 582,377,449,727.43
  5. Step 5: Solve for x
    x = 582,377,449,727.43/881,272.50
  6. Step 6: Final answer
    x = 660,836.97

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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.