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Finding the Fourth Proportional to 610.18, 840.36 and 527.26

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Solution

The fourth proportional to 610.18, 840.36 and 527.26 is: 726.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    610.18 : 840.36 = 527.26 : x
  2. Step 2: Convert to fraction form
    610.18/840.36 = 527.26/x
  3. Step 3: Cross multiply
    610.18x = 840.36 × 527.26
  4. Step 4: Simplify right side
    610.18x = 443,088.21
  5. Step 5: Solve for x
    x = 443,088.21/610.18
  6. Step 6: Final answer
    x = 726.16

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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.