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Finding the Fourth Proportional to 624.93, 937.98 and 451.77

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Solution

The fourth proportional to 624.93, 937.98 and 451.77 is: 678.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.93 : 937.98 = 451.77 : x
  2. Step 2: Convert to fraction form
    624.93/937.98 = 451.77/x
  3. Step 3: Cross multiply
    624.93x = 937.98 × 451.77
  4. Step 4: Simplify right side
    624.93x = 423,751.22
  5. Step 5: Solve for x
    x = 423,751.22/624.93
  6. Step 6: Final answer
    x = 678.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.