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Finding the Fourth Proportional to 579.52, 865.04 and 503.02

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Solution

The fourth proportional to 579.52, 865.04 and 503.02 is: 750.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.52 : 865.04 = 503.02 : x
  2. Step 2: Convert to fraction form
    579.52/865.04 = 503.02/x
  3. Step 3: Cross multiply
    579.52x = 865.04 × 503.02
  4. Step 4: Simplify right side
    579.52x = 435,132.42
  5. Step 5: Solve for x
    x = 435,132.42/579.52
  6. Step 6: Final answer
    x = 750.85

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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.