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Finding the Fourth Proportional to 949.99, 1,424.37 and 624.37

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Solution

The fourth proportional to 949.99, 1,424.37 and 624.37 is: 936.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    949.99 : 1,424.37 = 624.37 : x
  2. Step 2: Convert to fraction form
    949.99/1,424.37 = 624.37/x
  3. Step 3: Cross multiply
    949.99x = 1,424.37 × 624.37
  4. Step 4: Simplify right side
    949.99x = 889,333.90
  5. Step 5: Solve for x
    x = 889,333.90/949.99
  6. Step 6: Final answer
    x = 936.15

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1.5x scale

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.