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Finding the Fourth Proportional to 657,977.58, 984,720.71 and 551,481.84

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Solution

The fourth proportional to 657,977.58, 984,720.71 and 551,481.84 is: 825,340.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,977.58 : 984,720.71 = 551,481.84 : x
  2. Step 2: Convert to fraction form
    657,977.58/984,720.71 = 551,481.84/x
  3. Step 3: Cross multiply
    657,977.58x = 984,720.71 × 551,481.84
  4. Step 4: Simplify right side
    657,977.58x = 543,055,589,036.91
  5. Step 5: Solve for x
    x = 543,055,589,036.91/657,977.58
  6. Step 6: Final answer
    x = 825,340.57

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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.