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Finding the Fourth Proportional to 702.18, 1,052.25 and 482.58

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Solution

The fourth proportional to 702.18, 1,052.25 and 482.58 is: 723.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.18 : 1,052.25 = 482.58 : x
  2. Step 2: Convert to fraction form
    702.18/1,052.25 = 482.58/x
  3. Step 3: Cross multiply
    702.18x = 1,052.25 × 482.58
  4. Step 4: Simplify right side
    702.18x = 507,794.81
  5. Step 5: Solve for x
    x = 507,794.81/702.18
  6. Step 6: Final answer
    x = 723.17

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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.