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Finding the Fourth Proportional to 508,936.64, 702,344.32 and 291,165.77

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Solution

The fourth proportional to 508,936.64, 702,344.32 and 291,165.77 is: 401,815.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,936.64 : 702,344.32 = 291,165.77 : x
  2. Step 2: Convert to fraction form
    508,936.64/702,344.32 = 291,165.77/x
  3. Step 3: Cross multiply
    508,936.64x = 702,344.32 × 291,165.77
  4. Step 4: Simplify right side
    508,936.64x = 204,498,625,765.87
  5. Step 5: Solve for x
    x = 204,498,625,765.87/508,936.64
  6. Step 6: Final answer
    x = 401,815.49

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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.