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Finding the Fourth Proportional to 555,028.48, 765,943.57 and 325,589.55

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Solution

The fourth proportional to 555,028.48, 765,943.57 and 325,589.55 is: 449,316.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,028.48 : 765,943.57 = 325,589.55 : x
  2. Step 2: Convert to fraction form
    555,028.48/765,943.57 = 325,589.55/x
  3. Step 3: Cross multiply
    555,028.48x = 765,943.57 × 325,589.55
  4. Step 4: Simplify right side
    555,028.48x = 249,383,222,281.69
  5. Step 5: Solve for x
    x = 249,383,222,281.69/555,028.48
  6. Step 6: Final answer
    x = 449,316.08

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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.