Home / 743,499.60-1,115,249.40-270,200.40

Finding the Fourth Proportional to 743,499.60, 1,115,249.40 and 270,200.40

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Solution

The fourth proportional to 743,499.60, 1,115,249.40 and 270,200.40 is: 405,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,499.60 : 1,115,249.40 = 270,200.40 : x
  2. Step 2: Convert to fraction form
    743,499.60/1,115,249.40 = 270,200.40/x
  3. Step 3: Cross multiply
    743,499.60x = 1,115,249.40 × 270,200.40
  4. Step 4: Simplify right side
    743,499.60x = 301,340,833,979.76
  5. Step 5: Solve for x
    x = 301,340,833,979.76/743,499.60
  6. Step 6: Final answer
    x = 405,300.60

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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.