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Finding the Fourth Proportional to 406,726, 610,140.02 and 122,372.26

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Solution

The fourth proportional to 406,726, 610,140.02 and 122,372.26 is: 183,573.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,726 : 610,140.02 = 122,372.26 : x
  2. Step 2: Convert to fraction form
    406,726/610,140.02 = 122,372.26/x
  3. Step 3: Cross multiply
    406,726x = 610,140.02 × 122,372.26
  4. Step 4: Simplify right side
    406,726x = 74,664,213,163.85
  5. Step 5: Solve for x
    x = 74,664,213,163.85/406,726
  6. Step 6: Final answer
    x = 183,573.74

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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.