Home / 786,370.26-1,179,255.68-280,836.84

Finding the Fourth Proportional to 786,370.26, 1,179,255.68 and 280,836.84

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Solution

The fourth proportional to 786,370.26, 1,179,255.68 and 280,836.84 is: 421,148.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,370.26 : 1,179,255.68 = 280,836.84 : x
  2. Step 2: Convert to fraction form
    786,370.26/1,179,255.68 = 280,836.84/x
  3. Step 3: Cross multiply
    786,370.26x = 1,179,255.68 × 280,836.84
  4. Step 4: Simplify right side
    786,370.26x = 331,178,438,723.25
  5. Step 5: Solve for x
    x = 331,178,438,723.25/786,370.26
  6. Step 6: Final answer
    x = 421,148.22

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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.