Home / 808,811.20-1,214,200.95-409,246.30

Finding the Fourth Proportional to 808,811.20, 1,214,200.95 and 409,246.30

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Solution

The fourth proportional to 808,811.20, 1,214,200.95 and 409,246.30 is: 614,367.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,811.20 : 1,214,200.95 = 409,246.30 : x
  2. Step 2: Convert to fraction form
    808,811.20/1,214,200.95 = 409,246.30/x
  3. Step 3: Cross multiply
    808,811.20x = 1,214,200.95 × 409,246.30
  4. Step 4: Simplify right side
    808,811.20x = 496,907,246,243.99
  5. Step 5: Solve for x
    x = 496,907,246,243.99/808,811.20
  6. Step 6: Final answer
    x = 614,367.42

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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.