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Finding the Fourth Proportional to 1,217.84, 1,827.06 and 488.23

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Solution

The fourth proportional to 1,217.84, 1,827.06 and 488.23 is: 732.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.84 : 1,827.06 = 488.23 : x
  2. Step 2: Convert to fraction form
    1,217.84/1,827.06 = 488.23/x
  3. Step 3: Cross multiply
    1,217.84x = 1,827.06 × 488.23
  4. Step 4: Simplify right side
    1,217.84x = 892,019.11
  5. Step 5: Solve for x
    x = 892,019.11/1,217.84
  6. Step 6: Final answer
    x = 732.46

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1.5x scale

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.