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Finding the Fourth Proportional to 385,663.20, 578,716.32 and 301,186.24

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Solution

The fourth proportional to 385,663.20, 578,716.32 and 301,186.24 is: 451,952.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,663.20 : 578,716.32 = 301,186.24 : x
  2. Step 2: Convert to fraction form
    385,663.20/578,716.32 = 301,186.24/x
  3. Step 3: Cross multiply
    385,663.20x = 578,716.32 × 301,186.24
  4. Step 4: Simplify right side
    385,663.20x = 174,301,392,447.44
  5. Step 5: Solve for x
    x = 174,301,392,447.44/385,663.20
  6. Step 6: Final answer
    x = 451,952.36

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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.