Home / 756,572.28-1,135,129.44-324,108.32

Finding the Fourth Proportional to 756,572.28, 1,135,129.44 and 324,108.32

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Solution

The fourth proportional to 756,572.28, 1,135,129.44 and 324,108.32 is: 486,278.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,572.28 : 1,135,129.44 = 324,108.32 : x
  2. Step 2: Convert to fraction form
    756,572.28/1,135,129.44 = 324,108.32/x
  3. Step 3: Cross multiply
    756,572.28x = 1,135,129.44 × 324,108.32
  4. Step 4: Simplify right side
    756,572.28x = 367,904,890,105.29
  5. Step 5: Solve for x
    x = 367,904,890,105.29/756,572.28
  6. Step 6: Final answer
    x = 486,278.57

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Double scale
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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.