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Finding the Fourth Proportional to 735.15, 1,014.68 and 440.36

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Solution

The fourth proportional to 735.15, 1,014.68 and 440.36 is: 607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.15 : 1,014.68 = 440.36 : x
  2. Step 2: Convert to fraction form
    735.15/1,014.68 = 440.36/x
  3. Step 3: Cross multiply
    735.15x = 1,014.68 × 440.36
  4. Step 4: Simplify right side
    735.15x = 446,824.69
  5. Step 5: Solve for x
    x = 446,824.69/735.15
  6. Step 6: Final answer
    x = 607.80

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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.