Home / 657,766.32-907,720.20-355,960.32

Finding the Fourth Proportional to 657,766.32, 907,720.20 and 355,960.32

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Solution

The fourth proportional to 657,766.32, 907,720.20 and 355,960.32 is: 491,226.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,766.32 : 907,720.20 = 355,960.32 : x
  2. Step 2: Convert to fraction form
    657,766.32/907,720.20 = 355,960.32/x
  3. Step 3: Cross multiply
    657,766.32x = 907,720.20 × 355,960.32
  4. Step 4: Simplify right side
    657,766.32x = 323,112,372,862.46
  5. Step 5: Solve for x
    x = 323,112,372,862.46/657,766.32
  6. Step 6: Final answer
    x = 491,226.69

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1.5x scale

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.