Home / 769,436.40-1,154,178.02-263,990.29

Finding the Fourth Proportional to 769,436.40, 1,154,178.02 and 263,990.29

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Solution

The fourth proportional to 769,436.40, 1,154,178.02 and 263,990.29 is: 395,993.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,436.40 : 1,154,178.02 = 263,990.29 : x
  2. Step 2: Convert to fraction form
    769,436.40/1,154,178.02 = 263,990.29/x
  3. Step 3: Cross multiply
    769,436.40x = 1,154,178.02 × 263,990.29
  4. Step 4: Simplify right side
    769,436.40x = 304,691,790,211.43
  5. Step 5: Solve for x
    x = 304,691,790,211.43/769,436.40
  6. Step 6: Final answer
    x = 395,993.47

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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.