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Finding the Fourth Proportional to 559,117.80, 771,591.35 and 304,468.79

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Solution

The fourth proportional to 559,117.80, 771,591.35 and 304,468.79 is: 420,171.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,117.80 : 771,591.35 = 304,468.79 : x
  2. Step 2: Convert to fraction form
    559,117.80/771,591.35 = 304,468.79/x
  3. Step 3: Cross multiply
    559,117.80x = 771,591.35 × 304,468.79
  4. Step 4: Simplify right side
    559,117.80x = 234,925,481,612.18
  5. Step 5: Solve for x
    x = 234,925,481,612.18/559,117.80
  6. Step 6: Final answer
    x = 420,171.71

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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.