Home / 754,289-1,040,621.92-431,825.28

Finding the Fourth Proportional to 754,289, 1,040,621.92 and 431,825.28

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Solution

The fourth proportional to 754,289, 1,040,621.92 and 431,825.28 is: 595,748.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,289 : 1,040,621.92 = 431,825.28 : x
  2. Step 2: Convert to fraction form
    754,289/1,040,621.92 = 431,825.28/x
  3. Step 3: Cross multiply
    754,289x = 1,040,621.92 × 431,825.28
  4. Step 4: Simplify right side
    754,289x = 449,366,851,978.14
  5. Step 5: Solve for x
    x = 449,366,851,978.14/754,289
  6. Step 6: Final answer
    x = 595,748.91

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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.