Home / 309,658.39-464,403.27-84,965.55

Finding the Fourth Proportional to 309,658.39, 464,403.27 and 84,965.55

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Solution

The fourth proportional to 309,658.39, 464,403.27 and 84,965.55 is: 127,425.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,658.39 : 464,403.27 = 84,965.55 : x
  2. Step 2: Convert to fraction form
    309,658.39/464,403.27 = 84,965.55/x
  3. Step 3: Cross multiply
    309,658.39x = 464,403.27 × 84,965.55
  4. Step 4: Simplify right side
    309,658.39x = 39,458,278,832.52
  5. Step 5: Solve for x
    x = 39,458,278,832.52/309,658.39
  6. Step 6: Final answer
    x = 127,425.19

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1.5x scale

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.