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Finding the Fourth Proportional to 776.06, 1,070.96 and 444.46

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Solution

The fourth proportional to 776.06, 1,070.96 and 444.46 is: 613.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    776.06 : 1,070.96 = 444.46 : x
  2. Step 2: Convert to fraction form
    776.06/1,070.96 = 444.46/x
  3. Step 3: Cross multiply
    776.06x = 1,070.96 × 444.46
  4. Step 4: Simplify right side
    776.06x = 475,998.88
  5. Step 5: Solve for x
    x = 475,998.88/776.06
  6. Step 6: Final answer
    x = 613.36

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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.