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Finding the Fourth Proportional to 559,262.13, 771,517.89 and 378,037.32

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Solution

The fourth proportional to 559,262.13, 771,517.89 and 378,037.32 is: 521,513.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,262.13 : 771,517.89 = 378,037.32 : x
  2. Step 2: Convert to fraction form
    559,262.13/771,517.89 = 378,037.32/x
  3. Step 3: Cross multiply
    559,262.13x = 771,517.89 × 378,037.32
  4. Step 4: Simplify right side
    559,262.13x = 291,662,555,467.66
  5. Step 5: Solve for x
    x = 291,662,555,467.66/559,262.13
  6. Step 6: Final answer
    x = 521,513.15

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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.