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Finding the Fourth Proportional to 647.24, 893.90 and 524.24

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Solution

The fourth proportional to 647.24, 893.90 and 524.24 is: 724.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    647.24 : 893.90 = 524.24 : x
  2. Step 2: Convert to fraction form
    647.24/893.90 = 524.24/x
  3. Step 3: Cross multiply
    647.24x = 893.90 × 524.24
  4. Step 4: Simplify right side
    647.24x = 468,618.14
  5. Step 5: Solve for x
    x = 468,618.14/647.24
  6. Step 6: Final answer
    x = 724.03

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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.