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Finding the Third Proportional to 521,878.75 and 808,070

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Solution

The third proportional to 521,878.75 and 808,070 is: 1,251,204.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,878.75 : 808,070 = 808,070 : x
  2. Step 2: Convert to fraction form
    521,878.75/808,070 = 808,070/x
  3. Step 3: Cross multiply
    521,878.75x = 808,070 × 808,070
  4. Step 4: Simplify right side
    521,878.75x = 652,977,124,900
  5. Step 5: Solve for x
    x = 652,977,124,900/521,878.75
  6. Step 6: Final answer
    x = 1,251,204.66

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.