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Finding the Fourth Proportional to 501.13, 747.83 and 440.39

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Solution

The fourth proportional to 501.13, 747.83 and 440.39 is: 657.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.13 : 747.83 = 440.39 : x
  2. Step 2: Convert to fraction form
    501.13/747.83 = 440.39/x
  3. Step 3: Cross multiply
    501.13x = 747.83 × 440.39
  4. Step 4: Simplify right side
    501.13x = 329,336.85
  5. Step 5: Solve for x
    x = 329,336.85/501.13
  6. Step 6: Final answer
    x = 657.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.