Home / 808,331.94-1,115,712.73-477,478.02

Finding the Fourth Proportional to 808,331.94, 1,115,712.73 and 477,478.02

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Solution

The fourth proportional to 808,331.94, 1,115,712.73 and 477,478.02 is: 659,046.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,331.94 : 1,115,712.73 = 477,478.02 : x
  2. Step 2: Convert to fraction form
    808,331.94/1,115,712.73 = 477,478.02/x
  3. Step 3: Cross multiply
    808,331.94x = 1,115,712.73 × 477,478.02
  4. Step 4: Simplify right side
    808,331.94x = 532,728,309,989.97
  5. Step 5: Solve for x
    x = 532,728,309,989.97/808,331.94
  6. Step 6: Final answer
    x = 659,046.47

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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.