Home / 779,231.80-1,168,847.70-329,803.30

Finding the Fourth Proportional to 779,231.80, 1,168,847.70 and 329,803.30

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Solution

The fourth proportional to 779,231.80, 1,168,847.70 and 329,803.30 is: 494,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,231.80 : 1,168,847.70 = 329,803.30 : x
  2. Step 2: Convert to fraction form
    779,231.80/1,168,847.70 = 329,803.30/x
  3. Step 3: Cross multiply
    779,231.80x = 1,168,847.70 × 329,803.30
  4. Step 4: Simplify right side
    779,231.80x = 385,489,828,657.41
  5. Step 5: Solve for x
    x = 385,489,828,657.41/779,231.80
  6. Step 6: Final answer
    x = 494,704.95

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Double scale
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Similar ratio
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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.