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Finding the Fourth Proportional to 559,213.05, 771,722.82 and 304,564.05

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Solution

The fourth proportional to 559,213.05, 771,722.82 and 304,564.05 is: 420,303.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,213.05 : 771,722.82 = 304,564.05 : x
  2. Step 2: Convert to fraction form
    559,213.05/771,722.82 = 304,564.05/x
  3. Step 3: Cross multiply
    559,213.05x = 771,722.82 × 304,564.05
  4. Step 4: Simplify right side
    559,213.05x = 235,039,027,536.62
  5. Step 5: Solve for x
    x = 235,039,027,536.62/559,213.05
  6. Step 6: Final answer
    x = 420,303.19

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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.