Home / 814,276.20-1,220,831.10-340,717.80

Finding the Fourth Proportional to 814,276.20, 1,220,831.10 and 340,717.80

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Solution

The fourth proportional to 814,276.20, 1,220,831.10 and 340,717.80 is: 510,832.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,276.20 : 1,220,831.10 = 340,717.80 : x
  2. Step 2: Convert to fraction form
    814,276.20/1,220,831.10 = 340,717.80/x
  3. Step 3: Cross multiply
    814,276.20x = 1,220,831.10 × 340,717.80
  4. Step 4: Simplify right side
    814,276.20x = 415,958,886,563.58
  5. Step 5: Solve for x
    x = 415,958,886,563.58/814,276.20
  6. Step 6: Final answer
    x = 510,832.67

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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.