Home / 804,490.80-1,206,736.20-243,525.30

Finding the Fourth Proportional to 804,490.80, 1,206,736.20 and 243,525.30

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Solution

The fourth proportional to 804,490.80, 1,206,736.20 and 243,525.30 is: 365,287.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,490.80 : 1,206,736.20 = 243,525.30 : x
  2. Step 2: Convert to fraction form
    804,490.80/1,206,736.20 = 243,525.30/x
  3. Step 3: Cross multiply
    804,490.80x = 1,206,736.20 × 243,525.30
  4. Step 4: Simplify right side
    804,490.80x = 293,870,795,125.86
  5. Step 5: Solve for x
    x = 293,870,795,125.86/804,490.80
  6. Step 6: Final answer
    x = 365,287.95

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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.