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Finding the Fourth Proportional to 558,951.90, 771,367.49 and 304,317.06

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Solution

The fourth proportional to 558,951.90, 771,367.49 and 304,317.06 is: 419,965.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,951.90 : 771,367.49 = 304,317.06 : x
  2. Step 2: Convert to fraction form
    558,951.90/771,367.49 = 304,317.06/x
  3. Step 3: Cross multiply
    558,951.90x = 771,367.49 × 304,317.06
  4. Step 4: Simplify right side
    558,951.90x = 234,740,286,736.38
  5. Step 5: Solve for x
    x = 234,740,286,736.38/558,951.90
  6. Step 6: Final answer
    x = 419,965.09

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1.5x scale

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.