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Finding the Third Proportional to 551,255 and 830,089

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Solution

The third proportional to 551,255 and 830,089 is: 1,249,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,255 : 830,089 = 830,089 : x
  2. Step 2: Convert to fraction form
    551,255/830,089 = 830,089/x
  3. Step 3: Cross multiply
    551,255x = 830,089 × 830,089
  4. Step 4: Simplify right side
    551,255x = 689,047,747,921
  5. Step 5: Solve for x
    x = 689,047,747,921/551,255
  6. Step 6: Final answer
    x = 1,249,961.90

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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.