Home / 776,395.46-1,071,401.38-449,714.85

Finding the Fourth Proportional to 776,395.46, 1,071,401.38 and 449,714.85

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Solution

The fourth proportional to 776,395.46, 1,071,401.38 and 449,714.85 is: 620,592.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,395.46 : 1,071,401.38 = 449,714.85 : x
  2. Step 2: Convert to fraction form
    776,395.46/1,071,401.38 = 449,714.85/x
  3. Step 3: Cross multiply
    776,395.46x = 1,071,401.38 × 449,714.85
  4. Step 4: Simplify right side
    776,395.46x = 481,825,114,310.73
  5. Step 5: Solve for x
    x = 481,825,114,310.73/776,395.46
  6. Step 6: Final answer
    x = 620,592.39

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.