Home / 813,103.20-1,122,052.14-468,953.54

Finding the Fourth Proportional to 813,103.20, 1,122,052.14 and 468,953.54

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Solution

The fourth proportional to 813,103.20, 1,122,052.14 and 468,953.54 is: 647,138.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,103.20 : 1,122,052.14 = 468,953.54 : x
  2. Step 2: Convert to fraction form
    813,103.20/1,122,052.14 = 468,953.54/x
  3. Step 3: Cross multiply
    813,103.20x = 1,122,052.14 × 468,953.54
  4. Step 4: Simplify right side
    813,103.20x = 526,190,317,507.32
  5. Step 5: Solve for x
    x = 526,190,317,507.32/813,103.20
  6. Step 6: Final answer
    x = 647,138.42

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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.