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Finding the Third Proportional to 569,116 and 857,428

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Solution

The third proportional to 569,116 and 857,428 is: 1,291,797.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,116 : 857,428 = 857,428 : x
  2. Step 2: Convert to fraction form
    569,116/857,428 = 857,428/x
  3. Step 3: Cross multiply
    569,116x = 857,428 × 857,428
  4. Step 4: Simplify right side
    569,116x = 735,182,775,184
  5. Step 5: Solve for x
    x = 735,182,775,184/569,116
  6. Step 6: Final answer
    x = 1,291,797.76

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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.