Home / 438,734.52-605,420.46-247,721.40

Finding the Fourth Proportional to 438,734.52, 605,420.46 and 247,721.40

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Solution

The fourth proportional to 438,734.52, 605,420.46 and 247,721.40 is: 341,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,734.52 : 605,420.46 = 247,721.40 : x
  2. Step 2: Convert to fraction form
    438,734.52/605,420.46 = 247,721.40/x
  3. Step 3: Cross multiply
    438,734.52x = 605,420.46 × 247,721.40
  4. Step 4: Simplify right side
    438,734.52x = 149,975,603,939.84
  5. Step 5: Solve for x
    x = 149,975,603,939.84/438,734.52
  6. Step 6: Final answer
    x = 341,836.80

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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.