Home / 438,738.12-605,453.94-247,740.12

Finding the Fourth Proportional to 438,738.12, 605,453.94 and 247,740.12

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Solution

The fourth proportional to 438,738.12, 605,453.94 and 247,740.12 is: 341,878.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,738.12 : 605,453.94 = 247,740.12 : x
  2. Step 2: Convert to fraction form
    438,738.12/605,453.94 = 247,740.12/x
  3. Step 3: Cross multiply
    438,738.12x = 605,453.94 × 247,740.12
  4. Step 4: Simplify right side
    438,738.12x = 149,995,231,750.07
  5. Step 5: Solve for x
    x = 149,995,231,750.07/438,738.12
  6. Step 6: Final answer
    x = 341,878.73

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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.