Home / 743,940.60-1,115,954.10-211,500.60

Finding the Fourth Proportional to 743,940.60, 1,115,954.10 and 211,500.60

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Solution

The fourth proportional to 743,940.60, 1,115,954.10 and 211,500.60 is: 317,263.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,940.60 : 1,115,954.10 = 211,500.60 : x
  2. Step 2: Convert to fraction form
    743,940.60/1,115,954.10 = 211,500.60/x
  3. Step 3: Cross multiply
    743,940.60x = 1,115,954.10 × 211,500.60
  4. Step 4: Simplify right side
    743,940.60x = 236,024,961,722.46
  5. Step 5: Solve for x
    x = 236,024,961,722.46/743,940.60
  6. Step 6: Final answer
    x = 317,263.18

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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.