Home / 399,028.95-598,548.69-132,789.51

Finding the Fourth Proportional to 399,028.95, 598,548.69 and 132,789.51

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Solution

The fourth proportional to 399,028.95, 598,548.69 and 132,789.51 is: 199,186.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,028.95 : 598,548.69 = 132,789.51 : x
  2. Step 2: Convert to fraction form
    399,028.95/598,548.69 = 132,789.51/x
  3. Step 3: Cross multiply
    399,028.95x = 598,548.69 × 132,789.51
  4. Step 4: Simplify right side
    399,028.95x = 79,480,987,256.24
  5. Step 5: Solve for x
    x = 79,480,987,256.24/399,028.95
  6. Step 6: Final answer
    x = 199,186.02

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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.