Home / 772,919.20-1,159,865.20-329,680.80

Finding the Fourth Proportional to 772,919.20, 1,159,865.20 and 329,680.80

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Solution

The fourth proportional to 772,919.20, 1,159,865.20 and 329,680.80 is: 494,728.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,919.20 : 1,159,865.20 = 329,680.80 : x
  2. Step 2: Convert to fraction form
    772,919.20/1,159,865.20 = 329,680.80/x
  3. Step 3: Cross multiply
    772,919.20x = 1,159,865.20 × 329,680.80
  4. Step 4: Simplify right side
    772,919.20x = 382,385,287,028.16
  5. Step 5: Solve for x
    x = 382,385,287,028.16/772,919.20
  6. Step 6: Final answer
    x = 494,728.67

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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.