Home / 752,190.37-1,128,824.27-320,210.70

Finding the Fourth Proportional to 752,190.37, 1,128,824.27 and 320,210.70

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Solution

The fourth proportional to 752,190.37, 1,128,824.27 and 320,210.70 is: 480,545.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,190.37 : 1,128,824.27 = 320,210.70 : x
  2. Step 2: Convert to fraction form
    752,190.37/1,128,824.27 = 320,210.70/x
  3. Step 3: Cross multiply
    752,190.37x = 1,128,824.27 × 320,210.70
  4. Step 4: Simplify right side
    752,190.37x = 361,461,605,419.30
  5. Step 5: Solve for x
    x = 361,461,605,419.30/752,190.37
  6. Step 6: Final answer
    x = 480,545.37

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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.