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Finding the Fourth Proportional to 950.50, 1,426.38 and 437.50

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Solution

The fourth proportional to 950.50, 1,426.38 and 437.50 is: 656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    950.50 : 1,426.38 = 437.50 : x
  2. Step 2: Convert to fraction form
    950.50/1,426.38 = 437.50/x
  3. Step 3: Cross multiply
    950.50x = 1,426.38 × 437.50
  4. Step 4: Simplify right side
    950.50x = 624,041.25
  5. Step 5: Solve for x
    x = 624,041.25/950.50
  6. Step 6: Final answer
    x = 656.54

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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.