Home / 438,949.70-605,799.75-247,975.40

Finding the Fourth Proportional to 438,949.70, 605,799.75 and 247,975.40

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Solution

The fourth proportional to 438,949.70, 605,799.75 and 247,975.40 is: 342,233.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,949.70 : 605,799.75 = 247,975.40 : x
  2. Step 2: Convert to fraction form
    438,949.70/605,799.75 = 247,975.40/x
  3. Step 3: Cross multiply
    438,949.70x = 605,799.75 × 247,975.40
  4. Step 4: Simplify right side
    438,949.70x = 150,223,431,057.27
  5. Step 5: Solve for x
    x = 150,223,431,057.27/438,949.70
  6. Step 6: Final answer
    x = 342,233.82

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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.