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Finding the Fourth Proportional to 628,569, 867,425.22 and 360,452.52

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Solution

The fourth proportional to 628,569, 867,425.22 and 360,452.52 is: 497,424.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,569 : 867,425.22 = 360,452.52 : x
  2. Step 2: Convert to fraction form
    628,569/867,425.22 = 360,452.52/x
  3. Step 3: Cross multiply
    628,569x = 867,425.22 × 360,452.52
  4. Step 4: Simplify right side
    628,569x = 312,665,606,460.55
  5. Step 5: Solve for x
    x = 312,665,606,460.55/628,569
  6. Step 6: Final answer
    x = 497,424.48

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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.