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Finding the Fourth Proportional to 500.64, 749.44 and 436.64

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Solution

The fourth proportional to 500.64, 749.44 and 436.64 is: 653.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.64 : 749.44 = 436.64 : x
  2. Step 2: Convert to fraction form
    500.64/749.44 = 436.64/x
  3. Step 3: Cross multiply
    500.64x = 749.44 × 436.64
  4. Step 4: Simplify right side
    500.64x = 327,235.48
  5. Step 5: Solve for x
    x = 327,235.48/500.64
  6. Step 6: Final answer
    x = 653.63

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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.