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Finding the Fourth Proportional to 953.08, 1,429.90 and 433.50

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Solution

The fourth proportional to 953.08, 1,429.90 and 433.50 is: 650.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.08 : 1,429.90 = 433.50 : x
  2. Step 2: Convert to fraction form
    953.08/1,429.90 = 433.50/x
  3. Step 3: Cross multiply
    953.08x = 1,429.90 × 433.50
  4. Step 4: Simplify right side
    953.08x = 619,865.69
  5. Step 5: Solve for x
    x = 619,865.69/953.08
  6. Step 6: Final answer
    x = 650.38

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Double scale
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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.