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Finding the Fourth Proportional to 585.25, 807.35 and 543.56

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Solution

The fourth proportional to 585.25, 807.35 and 543.56 is: 749.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.25 : 807.35 = 543.56 : x
  2. Step 2: Convert to fraction form
    585.25/807.35 = 543.56/x
  3. Step 3: Cross multiply
    585.25x = 807.35 × 543.56
  4. Step 4: Simplify right side
    585.25x = 438,836.41
  5. Step 5: Solve for x
    x = 438,836.41/585.25
  6. Step 6: Final answer
    x = 749.83

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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.