Home / 743,636.46-1,115,445.78-270,317.82

Finding the Fourth Proportional to 743,636.46, 1,115,445.78 and 270,317.82

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Solution

The fourth proportional to 743,636.46, 1,115,445.78 and 270,317.82 is: 405,473.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,636.46 : 1,115,445.78 = 270,317.82 : x
  2. Step 2: Convert to fraction form
    743,636.46/1,115,445.78 = 270,317.82/x
  3. Step 3: Cross multiply
    743,636.46x = 1,115,445.78 × 270,317.82
  4. Step 4: Simplify right side
    743,636.46x = 301,524,871,577.80
  5. Step 5: Solve for x
    x = 301,524,871,577.80/743,636.46
  6. Step 6: Final answer
    x = 405,473.49

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Half scale
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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.