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Finding the Third Proportional to 668,985 and 953,649

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Solution

The third proportional to 668,985 and 953,649 is: 1,359,442.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,985 : 953,649 = 953,649 : x
  2. Step 2: Convert to fraction form
    668,985/953,649 = 953,649/x
  3. Step 3: Cross multiply
    668,985x = 953,649 × 953,649
  4. Step 4: Simplify right side
    668,985x = 909,446,415,201
  5. Step 5: Solve for x
    x = 909,446,415,201/668,985
  6. Step 6: Final answer
    x = 1,359,442.16

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.