Home / 438,540.51-657,756.09-123,022.02

Finding the Fourth Proportional to 438,540.51, 657,756.09 and 123,022.02

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Solution

The fourth proportional to 438,540.51, 657,756.09 and 123,022.02 is: 184,517.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,540.51 : 657,756.09 = 123,022.02 : x
  2. Step 2: Convert to fraction form
    438,540.51/657,756.09 = 123,022.02/x
  3. Step 3: Cross multiply
    438,540.51x = 657,756.09 × 123,022.02
  4. Step 4: Simplify right side
    438,540.51x = 80,918,482,859.10
  5. Step 5: Solve for x
    x = 80,918,482,859.10/438,540.51
  6. Step 6: Final answer
    x = 184,517.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.