Home / 438,675.12-605,367-247,677.12

Finding the Fourth Proportional to 438,675.12, 605,367 and 247,677.12

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Solution

The fourth proportional to 438,675.12, 605,367 and 247,677.12 is: 341,791.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,675.12 : 605,367 = 247,677.12 : x
  2. Step 2: Convert to fraction form
    438,675.12/605,367 = 247,677.12/x
  3. Step 3: Cross multiply
    438,675.12x = 605,367 × 247,677.12
  4. Step 4: Simplify right side
    438,675.12x = 149,935,555,103.04
  5. Step 5: Solve for x
    x = 149,935,555,103.04/438,675.12
  6. Step 6: Final answer
    x = 341,791.79

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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.