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Finding the Fourth Proportional to 556,758.27, 835,137 and 319,949.91

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Solution

The fourth proportional to 556,758.27, 835,137 and 319,949.91 is: 479,924.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,758.27 : 835,137 = 319,949.91 : x
  2. Step 2: Convert to fraction form
    556,758.27/835,137 = 319,949.91/x
  3. Step 3: Cross multiply
    556,758.27x = 835,137 × 319,949.91
  4. Step 4: Simplify right side
    556,758.27x = 267,202,007,987.67
  5. Step 5: Solve for x
    x = 267,202,007,987.67/556,758.27
  6. Step 6: Final answer
    x = 479,924.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.