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Finding the Fourth Proportional to 786,980.80, 1,180,471.20 and 254,883.70

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Solution

The fourth proportional to 786,980.80, 1,180,471.20 and 254,883.70 is: 382,325.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,980.80 : 1,180,471.20 = 254,883.70 : x
  2. Step 2: Convert to fraction form
    786,980.80/1,180,471.20 = 254,883.70/x
  3. Step 3: Cross multiply
    786,980.80x = 1,180,471.20 × 254,883.70
  4. Step 4: Simplify right side
    786,980.80x = 300,882,867,199.44
  5. Step 5: Solve for x
    x = 300,882,867,199.44/786,980.80
  6. Step 6: Final answer
    x = 382,325.55

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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.