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Finding the Fourth Proportional to 559,379.52, 771,936.80 and 304,725.28

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Solution

The fourth proportional to 559,379.52, 771,936.80 and 304,725.28 is: 420,517.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,379.52 : 771,936.80 = 304,725.28 : x
  2. Step 2: Convert to fraction form
    559,379.52/771,936.80 = 304,725.28/x
  3. Step 3: Cross multiply
    559,379.52x = 771,936.80 × 304,725.28
  4. Step 4: Simplify right side
    559,379.52x = 235,228,657,522.30
  5. Step 5: Solve for x
    x = 235,228,657,522.30/559,379.52
  6. Step 6: Final answer
    x = 420,517.11

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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.