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Finding the Fourth Proportional to 559,340.45, 771,885.87 and 304,691.64

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Solution

The fourth proportional to 559,340.45, 771,885.87 and 304,691.64 is: 420,472.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,340.45 : 771,885.87 = 304,691.64 : x
  2. Step 2: Convert to fraction form
    559,340.45/771,885.87 = 304,691.64/x
  3. Step 3: Cross multiply
    559,340.45x = 771,885.87 × 304,691.64
  4. Step 4: Simplify right side
    559,340.45x = 235,187,171,623.13
  5. Step 5: Solve for x
    x = 235,187,171,623.13/559,340.45
  6. Step 6: Final answer
    x = 420,472.31

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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.