Home / 776,679.04-1,072,005.82-449,939.25

Finding the Fourth Proportional to 776,679.04, 1,072,005.82 and 449,939.25

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Solution

The fourth proportional to 776,679.04, 1,072,005.82 and 449,939.25 is: 621,025.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,679.04 : 1,072,005.82 = 449,939.25 : x
  2. Step 2: Convert to fraction form
    776,679.04/1,072,005.82 = 449,939.25/x
  3. Step 3: Cross multiply
    776,679.04x = 1,072,005.82 × 449,939.25
  4. Step 4: Simplify right side
    776,679.04x = 482,337,489,286.41
  5. Step 5: Solve for x
    x = 482,337,489,286.41/776,679.04
  6. Step 6: Final answer
    x = 621,025.50

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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.