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Finding the Fourth Proportional to 610.50, 841.50 and 477.48

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Solution

The fourth proportional to 610.50, 841.50 and 477.48 is: 658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.50 : 841.50 = 477.48 : x
  2. Step 2: Convert to fraction form
    610.50/841.50 = 477.48/x
  3. Step 3: Cross multiply
    610.50x = 841.50 × 477.48
  4. Step 4: Simplify right side
    610.50x = 401,799.42
  5. Step 5: Solve for x
    x = 401,799.42/610.50
  6. Step 6: Final answer
    x = 658.15

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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.