Home / 808,215.20-1,212,278.85-247,249.70

Finding the Fourth Proportional to 808,215.20, 1,212,278.85 and 247,249.70

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Solution

The fourth proportional to 808,215.20, 1,212,278.85 and 247,249.70 is: 370,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,215.20 : 1,212,278.85 = 247,249.70 : x
  2. Step 2: Convert to fraction form
    808,215.20/1,212,278.85 = 247,249.70/x
  3. Step 3: Cross multiply
    808,215.20x = 1,212,278.85 × 247,249.70
  4. Step 4: Simplify right side
    808,215.20x = 299,735,581,978.85
  5. Step 5: Solve for x
    x = 299,735,581,978.85/808,215.20
  6. Step 6: Final answer
    x = 370,861.10

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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.