Home / 756,766.14-1,135,149.21-258,134.46

Finding the Fourth Proportional to 756,766.14, 1,135,149.21 and 258,134.46

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Solution

The fourth proportional to 756,766.14, 1,135,149.21 and 258,134.46 is: 387,201.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,766.14 : 1,135,149.21 = 258,134.46 : x
  2. Step 2: Convert to fraction form
    756,766.14/1,135,149.21 = 258,134.46/x
  3. Step 3: Cross multiply
    756,766.14x = 1,135,149.21 × 258,134.46
  4. Step 4: Simplify right side
    756,766.14x = 293,021,128,342.78
  5. Step 5: Solve for x
    x = 293,021,128,342.78/756,766.14
  6. Step 6: Final answer
    x = 387,201.69

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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.