Home / 1,214,138.60-1,821,206.10-361,206.44

Finding the Fourth Proportional to 1,214,138.60, 1,821,206.10 and 361,206.44

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Solution

The fourth proportional to 1,214,138.60, 1,821,206.10 and 361,206.44 is: 541,809.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,138.60 : 1,821,206.10 = 361,206.44 : x
  2. Step 2: Convert to fraction form
    1,214,138.60/1,821,206.10 = 361,206.44/x
  3. Step 3: Cross multiply
    1,214,138.60x = 1,821,206.10 × 361,206.44
  4. Step 4: Simplify right side
    1,214,138.60x = 657,831,371,887.28
  5. Step 5: Solve for x
    x = 657,831,371,887.28/1,214,138.60
  6. Step 6: Final answer
    x = 541,809.12

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Double scale
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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.