Home / 657,795.10-907,757.22-355,989.10

Finding the Fourth Proportional to 657,795.10, 907,757.22 and 355,989.10

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Solution

The fourth proportional to 657,795.10, 907,757.22 and 355,989.10 is: 491,264.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,795.10 : 907,757.22 = 355,989.10 : x
  2. Step 2: Convert to fraction form
    657,795.10/907,757.22 = 355,989.10/x
  3. Step 3: Cross multiply
    657,795.10x = 907,757.22 × 355,989.10
  4. Step 4: Simplify right side
    657,795.10x = 323,151,675,766.30
  5. Step 5: Solve for x
    x = 323,151,675,766.30/657,795.10
  6. Step 6: Final answer
    x = 491,264.95

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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.