Home / 438,936.79-605,782.11-247,962.55

Finding the Fourth Proportional to 438,936.79, 605,782.11 and 247,962.55

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Solution

The fourth proportional to 438,936.79, 605,782.11 and 247,962.55 is: 342,216.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,936.79 : 605,782.11 = 247,962.55 : x
  2. Step 2: Convert to fraction form
    438,936.79/605,782.11 = 247,962.55/x
  3. Step 3: Cross multiply
    438,936.79x = 605,782.11 × 247,962.55
  4. Step 4: Simplify right side
    438,936.79x = 150,211,276,739.98
  5. Step 5: Solve for x
    x = 150,211,276,739.98/438,936.79
  6. Step 6: Final answer
    x = 342,216.19

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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.