Home / 809,612.78-1,214,207.21-240,840.74

Finding the Fourth Proportional to 809,612.78, 1,214,207.21 and 240,840.74

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Solution

The fourth proportional to 809,612.78, 1,214,207.21 and 240,840.74 is: 361,198.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,612.78 : 1,214,207.21 = 240,840.74 : x
  2. Step 2: Convert to fraction form
    809,612.78/1,214,207.21 = 240,840.74/x
  3. Step 3: Cross multiply
    809,612.78x = 1,214,207.21 × 240,840.74
  4. Step 4: Simplify right side
    809,612.78x = 292,430,555,694.50
  5. Step 5: Solve for x
    x = 292,430,555,694.50/809,612.78
  6. Step 6: Final answer
    x = 361,198.05

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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.