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Finding the Third Proportional to 607,239 and 891,155

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Solution

The third proportional to 607,239 and 891,155 is: 1,307,816.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,239 : 891,155 = 891,155 : x
  2. Step 2: Convert to fraction form
    607,239/891,155 = 891,155/x
  3. Step 3: Cross multiply
    607,239x = 891,155 × 891,155
  4. Step 4: Simplify right side
    607,239x = 794,157,234,025
  5. Step 5: Solve for x
    x = 794,157,234,025/607,239
  6. Step 6: Final answer
    x = 1,307,816.58

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.