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Finding the Fourth Proportional to 559,770.56, 771,872.90 and 378,167.16

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Solution

The fourth proportional to 559,770.56, 771,872.90 and 378,167.16 is: 521,458.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,770.56 : 771,872.90 = 378,167.16 : x
  2. Step 2: Convert to fraction form
    559,770.56/771,872.90 = 378,167.16/x
  3. Step 3: Cross multiply
    559,770.56x = 771,872.90 × 378,167.16
  4. Step 4: Simplify right side
    559,770.56x = 291,896,982,473.96
  5. Step 5: Solve for x
    x = 291,896,982,473.96/559,770.56
  6. Step 6: Final answer
    x = 521,458.26

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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.