Home / 1,317.49-1,976.18-624.83

Finding the Fourth Proportional to 1,317.49, 1,976.18 and 624.83

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Solution

The fourth proportional to 1,317.49, 1,976.18 and 624.83 is: 937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317.49 : 1,976.18 = 624.83 : x
  2. Step 2: Convert to fraction form
    1,317.49/1,976.18 = 624.83/x
  3. Step 3: Cross multiply
    1,317.49x = 1,976.18 × 624.83
  4. Step 4: Simplify right side
    1,317.49x = 1,234,768.23
  5. Step 5: Solve for x
    x = 1,234,768.23/1,317.49
  6. Step 6: Final answer
    x = 937.21

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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.