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Finding the Fourth Proportional to 559,338.57, 771,883.28 and 304,689.77

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Solution

The fourth proportional to 559,338.57, 771,883.28 and 304,689.77 is: 420,469.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,338.57 : 771,883.28 = 304,689.77 : x
  2. Step 2: Convert to fraction form
    559,338.57/771,883.28 = 304,689.77/x
  3. Step 3: Cross multiply
    559,338.57x = 771,883.28 × 304,689.77
  4. Step 4: Simplify right side
    559,338.57x = 235,184,935,952.35
  5. Step 5: Solve for x
    x = 235,184,935,952.35/559,338.57
  6. Step 6: Final answer
    x = 420,469.73

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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.