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Finding the Fourth Proportional to 624.04, 860.95 and 437.74

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Solution

The fourth proportional to 624.04, 860.95 and 437.74 is: 603.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.04 : 860.95 = 437.74 : x
  2. Step 2: Convert to fraction form
    624.04/860.95 = 437.74/x
  3. Step 3: Cross multiply
    624.04x = 860.95 × 437.74
  4. Step 4: Simplify right side
    624.04x = 376,872.25
  5. Step 5: Solve for x
    x = 376,872.25/624.04
  6. Step 6: Final answer
    x = 603.92

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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.