Home / 752,979.56-1,129,137.78-353,733.80

Finding the Fourth Proportional to 752,979.56, 1,129,137.78 and 353,733.80

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Solution

The fourth proportional to 752,979.56, 1,129,137.78 and 353,733.80 is: 530,444.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,979.56 : 1,129,137.78 = 353,733.80 : x
  2. Step 2: Convert to fraction form
    752,979.56/1,129,137.78 = 353,733.80/x
  3. Step 3: Cross multiply
    752,979.56x = 1,129,137.78 × 353,733.80
  4. Step 4: Simplify right side
    752,979.56x = 399,414,197,642.96
  5. Step 5: Solve for x
    x = 399,414,197,642.96/752,979.56
  6. Step 6: Final answer
    x = 530,444.94

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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.