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Finding the Fourth Proportional to 559,759.59, 771,857.73 and 378,156.15

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Solution

The fourth proportional to 559,759.59, 771,857.73 and 378,156.15 is: 521,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,759.59 : 771,857.73 = 378,156.15 : x
  2. Step 2: Convert to fraction form
    559,759.59/771,857.73 = 378,156.15/x
  3. Step 3: Cross multiply
    559,759.59x = 771,857.73 × 378,156.15
  4. Step 4: Simplify right side
    559,759.59x = 291,882,747,524.54
  5. Step 5: Solve for x
    x = 291,882,747,524.54/559,759.59
  6. Step 6: Final answer
    x = 521,443.05

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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.