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Finding the Fourth Proportional to 616.01, 845.64 and 528.53

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Solution

The fourth proportional to 616.01, 845.64 and 528.53 is: 725.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.01 : 845.64 = 528.53 : x
  2. Step 2: Convert to fraction form
    616.01/845.64 = 528.53/x
  3. Step 3: Cross multiply
    616.01x = 845.64 × 528.53
  4. Step 4: Simplify right side
    616.01x = 446,941.88
  5. Step 5: Solve for x
    x = 446,941.88/616.01
  6. Step 6: Final answer
    x = 725.55

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.