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Finding the Fourth Proportional to 437,992, 604,428.96 and 236,788

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Solution

The fourth proportional to 437,992, 604,428.96 and 236,788 is: 326,767.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,992 : 604,428.96 = 236,788 : x
  2. Step 2: Convert to fraction form
    437,992/604,428.96 = 236,788/x
  3. Step 3: Cross multiply
    437,992x = 604,428.96 × 236,788
  4. Step 4: Simplify right side
    437,992x = 143,121,524,580.48
  5. Step 5: Solve for x
    x = 143,121,524,580.48/437,992
  6. Step 6: Final answer
    x = 326,767.44

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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.