Home / 657,734.28-907,674.50-355,928.36

Finding the Fourth Proportional to 657,734.28, 907,674.50 and 355,928.36

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Solution

The fourth proportional to 657,734.28, 907,674.50 and 355,928.36 is: 491,181.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,734.28 : 907,674.50 = 355,928.36 : x
  2. Step 2: Convert to fraction form
    657,734.28/907,674.50 = 355,928.36/x
  3. Step 3: Cross multiply
    657,734.28x = 907,674.50 × 355,928.36
  4. Step 4: Simplify right side
    657,734.28x = 323,067,096,198.82
  5. Step 5: Solve for x
    x = 323,067,096,198.82/657,734.28
  6. Step 6: Final answer
    x = 491,181.78

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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.