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Finding the Fourth Proportional to 406,511.54, 606,867.21 and 379,496.55

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Solution

The fourth proportional to 406,511.54, 606,867.21 and 379,496.55 is: 566,537.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,511.54 : 606,867.21 = 379,496.55 : x
  2. Step 2: Convert to fraction form
    406,511.54/606,867.21 = 379,496.55/x
  3. Step 3: Cross multiply
    406,511.54x = 606,867.21 × 379,496.55
  4. Step 4: Simplify right side
    406,511.54x = 230,304,010,605.64
  5. Step 5: Solve for x
    x = 230,304,010,605.64/406,511.54
  6. Step 6: Final answer
    x = 566,537.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.