Home / 438,935.79-605,780.73-247,961.55

Finding the Fourth Proportional to 438,935.79, 605,780.73 and 247,961.55

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Solution

The fourth proportional to 438,935.79, 605,780.73 and 247,961.55 is: 342,214.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,935.79 : 605,780.73 = 247,961.55 : x
  2. Step 2: Convert to fraction form
    438,935.79/605,780.73 = 247,961.55/x
  3. Step 3: Cross multiply
    438,935.79x = 605,780.73 × 247,961.55
  4. Step 4: Simplify right side
    438,935.79x = 150,210,328,770.93
  5. Step 5: Solve for x
    x = 150,210,328,770.93/438,935.79
  6. Step 6: Final answer
    x = 342,214.81

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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.