Home / 789,218.28-1,183,838.36-256,742.10

Finding the Fourth Proportional to 789,218.28, 1,183,838.36 and 256,742.10

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Solution

The fourth proportional to 789,218.28, 1,183,838.36 and 256,742.10 is: 385,116.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,218.28 : 1,183,838.36 = 256,742.10 : x
  2. Step 2: Convert to fraction form
    789,218.28/1,183,838.36 = 256,742.10/x
  3. Step 3: Cross multiply
    789,218.28x = 1,183,838.36 × 256,742.10
  4. Step 4: Simplify right side
    789,218.28x = 303,941,145,323.25
  5. Step 5: Solve for x
    x = 303,941,145,323.25/789,218.28
  6. Step 6: Final answer
    x = 385,116.71

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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.