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Finding the Fourth Proportional to 870,682.60, 1,201,793.22 and 526,519

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Solution

The fourth proportional to 870,682.60, 1,201,793.22 and 526,519 is: 726,748.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,682.60 : 1,201,793.22 = 526,519 : x
  2. Step 2: Convert to fraction form
    870,682.60/1,201,793.22 = 526,519/x
  3. Step 3: Cross multiply
    870,682.60x = 1,201,793.22 × 526,519
  4. Step 4: Simplify right side
    870,682.60x = 632,766,964,401.18
  5. Step 5: Solve for x
    x = 632,766,964,401.18/870,682.60
  6. Step 6: Final answer
    x = 726,748.14

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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.