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Finding the Fourth Proportional to 559,359.54, 771,909.21 and 304,705.26

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Solution

The fourth proportional to 559,359.54, 771,909.21 and 304,705.26 is: 420,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,359.54 : 771,909.21 = 304,705.26 : x
  2. Step 2: Convert to fraction form
    559,359.54/771,909.21 = 304,705.26/x
  3. Step 3: Cross multiply
    559,359.54x = 771,909.21 × 304,705.26
  4. Step 4: Simplify right side
    559,359.54x = 235,204,796,529.45
  5. Step 5: Solve for x
    x = 235,204,796,529.45/559,359.54
  6. Step 6: Final answer
    x = 420,489.47

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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.