Home / 812,397-1,120,848.66-526,136.52

Finding the Fourth Proportional to 812,397, 1,120,848.66 and 526,136.52

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Solution

The fourth proportional to 812,397, 1,120,848.66 and 526,136.52 is: 725,900.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,397 : 1,120,848.66 = 526,136.52 : x
  2. Step 2: Convert to fraction form
    812,397/1,120,848.66 = 526,136.52/x
  3. Step 3: Cross multiply
    812,397x = 1,120,848.66 × 526,136.52
  4. Step 4: Simplify right side
    812,397x = 589,719,413,419.06
  5. Step 5: Solve for x
    x = 589,719,413,419.06/812,397
  6. Step 6: Final answer
    x = 725,900.53

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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.