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Finding the Fourth Proportional to 500.32, 688.26 and 480.34

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Solution

The fourth proportional to 500.32, 688.26 and 480.34 is: 660.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.32 : 688.26 = 480.34 : x
  2. Step 2: Convert to fraction form
    500.32/688.26 = 480.34/x
  3. Step 3: Cross multiply
    500.32x = 688.26 × 480.34
  4. Step 4: Simplify right side
    500.32x = 330,598.81
  5. Step 5: Solve for x
    x = 330,598.81/500.32
  6. Step 6: Final answer
    x = 660.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.