Home / 812,836.34-1,214,310.73-526,191.72

Finding the Fourth Proportional to 812,836.34, 1,214,310.73 and 526,191.72

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Solution

The fourth proportional to 812,836.34, 1,214,310.73 and 526,191.72 is: 786,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,836.34 : 1,214,310.73 = 526,191.72 : x
  2. Step 2: Convert to fraction form
    812,836.34/1,214,310.73 = 526,191.72/x
  3. Step 3: Cross multiply
    812,836.34x = 1,214,310.73 × 526,191.72
  4. Step 4: Simplify right side
    812,836.34x = 638,960,246,750.62
  5. Step 5: Solve for x
    x = 638,960,246,750.62/812,836.34
  6. Step 6: Final answer
    x = 786,087.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.