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Finding the Fourth Proportional to 406,725.68, 610,139.56 and 122,371.94

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Solution

The fourth proportional to 406,725.68, 610,139.56 and 122,371.94 is: 183,573.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,725.68 : 610,139.56 = 122,371.94 : x
  2. Step 2: Convert to fraction form
    406,725.68/610,139.56 = 122,371.94/x
  3. Step 3: Cross multiply
    406,725.68x = 610,139.56 × 122,371.94
  4. Step 4: Simplify right side
    406,725.68x = 74,663,961,627.95
  5. Step 5: Solve for x
    x = 74,663,961,627.95/406,725.68
  6. Step 6: Final answer
    x = 183,573.27

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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.