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Finding the Third Proportional to 607 and 915.63

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Solution

The third proportional to 607 and 915.63 is: 1,381.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    607 : 915.63 = 915.63 : x
  2. Step 2: Convert to fraction form
    607/915.63 = 915.63/x
  3. Step 3: Cross multiply
    607x = 915.63 × 915.63
  4. Step 4: Simplify right side
    607x = 838,369.14
  5. Step 5: Solve for x
    x = 838,369.14/607
  6. Step 6: Final answer
    x = 1,381.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.