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Finding the Fourth Proportional to 773.03, 1,157.52 and 530.03

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Solution

The fourth proportional to 773.03, 1,157.52 and 530.03 is: 793.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.03 : 1,157.52 = 530.03 : x
  2. Step 2: Convert to fraction form
    773.03/1,157.52 = 530.03/x
  3. Step 3: Cross multiply
    773.03x = 1,157.52 × 530.03
  4. Step 4: Simplify right side
    773.03x = 613,520.33
  5. Step 5: Solve for x
    x = 613,520.33/773.03
  6. Step 6: Final answer
    x = 793.66

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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.