Home / 743,148.60-1,114,593.30-269,590.20

Finding the Fourth Proportional to 743,148.60, 1,114,593.30 and 269,590.20

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Solution

The fourth proportional to 743,148.60, 1,114,593.30 and 269,590.20 is: 404,338.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,148.60 : 1,114,593.30 = 269,590.20 : x
  2. Step 2: Convert to fraction form
    743,148.60/1,114,593.30 = 269,590.20/x
  3. Step 3: Cross multiply
    743,148.60x = 1,114,593.30 × 269,590.20
  4. Step 4: Simplify right side
    743,148.60x = 300,483,430,665.66
  5. Step 5: Solve for x
    x = 300,483,430,665.66/743,148.60
  6. Step 6: Final answer
    x = 404,338.29

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Double scale
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Similar ratio
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1.5x scale

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.