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Finding the Fourth Proportional to 624.34, 865.74 and 603.58

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Solution

The fourth proportional to 624.34, 865.74 and 603.58 is: 836.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.34 : 865.74 = 603.58 : x
  2. Step 2: Convert to fraction form
    624.34/865.74 = 603.58/x
  3. Step 3: Cross multiply
    624.34x = 865.74 × 603.58
  4. Step 4: Simplify right side
    624.34x = 522,543.35
  5. Step 5: Solve for x
    x = 522,543.35/624.34
  6. Step 6: Final answer
    x = 836.96

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.