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Finding the Fourth Proportional to 403,010, 604,493.12 and 122,505.38

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Solution

The fourth proportional to 403,010, 604,493.12 and 122,505.38 is: 183,751.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,010 : 604,493.12 = 122,505.38 : x
  2. Step 2: Convert to fraction form
    403,010/604,493.12 = 122,505.38/x
  3. Step 3: Cross multiply
    403,010x = 604,493.12 × 122,505.38
  4. Step 4: Simplify right side
    403,010x = 74,053,659,372.99
  5. Step 5: Solve for x
    x = 74,053,659,372.99/403,010
  6. Step 6: Final answer
    x = 183,751.42

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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.