Home / 787,279.80-1,181,211.30-254,818.20

Finding the Fourth Proportional to 787,279.80, 1,181,211.30 and 254,818.20

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Solution

The fourth proportional to 787,279.80, 1,181,211.30 and 254,818.20 is: 382,321.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,279.80 : 1,181,211.30 = 254,818.20 : x
  2. Step 2: Convert to fraction form
    787,279.80/1,181,211.30 = 254,818.20/x
  3. Step 3: Cross multiply
    787,279.80x = 1,181,211.30 × 254,818.20
  4. Step 4: Simplify right side
    787,279.80x = 300,994,137,285.66
  5. Step 5: Solve for x
    x = 300,994,137,285.66/787,279.80
  6. Step 6: Final answer
    x = 382,321.68

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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.