Home / 752,739.21-1,128,870.93-247,216.90

Finding the Fourth Proportional to 752,739.21, 1,128,870.93 and 247,216.90

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Solution

The fourth proportional to 752,739.21, 1,128,870.93 and 247,216.90 is: 370,747.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,739.21 : 1,128,870.93 = 247,216.90 : x
  2. Step 2: Convert to fraction form
    752,739.21/1,128,870.93 = 247,216.90/x
  3. Step 3: Cross multiply
    752,739.21x = 1,128,870.93 × 247,216.90
  4. Step 4: Simplify right side
    752,739.21x = 279,075,969,919.60
  5. Step 5: Solve for x
    x = 279,075,969,919.60/752,739.21
  6. Step 6: Final answer
    x = 370,747.22

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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.