Home / 789,439.20-1,184,331.60-256,869.60

Finding the Fourth Proportional to 789,439.20, 1,184,331.60 and 256,869.60

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Solution

The fourth proportional to 789,439.20, 1,184,331.60 and 256,869.60 is: 385,360.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,439.20 : 1,184,331.60 = 256,869.60 : x
  2. Step 2: Convert to fraction form
    789,439.20/1,184,331.60 = 256,869.60/x
  3. Step 3: Cross multiply
    789,439.20x = 1,184,331.60 × 256,869.60
  4. Step 4: Simplify right side
    789,439.20x = 304,218,784,359.36
  5. Step 5: Solve for x
    x = 304,218,784,359.36/789,439.20
  6. Step 6: Final answer
    x = 385,360.63

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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.