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Finding the Third Proportional to 581 and 910.63

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Solution

The third proportional to 581 and 910.63 is: 1,427.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    581 : 910.63 = 910.63 : x
  2. Step 2: Convert to fraction form
    581/910.63 = 910.63/x
  3. Step 3: Cross multiply
    581x = 910.63 × 910.63
  4. Step 4: Simplify right side
    581x = 829,237.89
  5. Step 5: Solve for x
    x = 829,237.89/581
  6. Step 6: Final answer
    x = 1,427.26

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.