Home / 521,145.36-781,832.79-296,611.47

Finding the Fourth Proportional to 521,145.36, 781,832.79 and 296,611.47

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Solution

The fourth proportional to 521,145.36, 781,832.79 and 296,611.47 is: 444,982.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,145.36 : 781,832.79 = 296,611.47 : x
  2. Step 2: Convert to fraction form
    521,145.36/781,832.79 = 296,611.47/x
  3. Step 3: Cross multiply
    521,145.36x = 781,832.79 × 296,611.47
  4. Step 4: Simplify right side
    521,145.36x = 231,900,573,136.10
  5. Step 5: Solve for x
    x = 231,900,573,136.10/521,145.36
  6. Step 6: Final answer
    x = 444,982.52

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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.