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Finding the Fourth Proportional to 950.50, 1,424.13 and 777.16

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Solution

The fourth proportional to 950.50, 1,424.13 and 777.16 is: 1,164.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.50 : 1,424.13 = 777.16 : x
  2. Step 2: Convert to fraction form
    950.50/1,424.13 = 777.16/x
  3. Step 3: Cross multiply
    950.50x = 1,424.13 × 777.16
  4. Step 4: Simplify right side
    950.50x = 1,106,776.87
  5. Step 5: Solve for x
    x = 1,106,776.87/950.50
  6. Step 6: Final answer
    x = 1,164.42

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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.