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Finding the Third Proportional to 553,675.50 and 869,859

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Solution

The third proportional to 553,675.50 and 869,859 is: 1,366,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,675.50 : 869,859 = 869,859 : x
  2. Step 2: Convert to fraction form
    553,675.50/869,859 = 869,859/x
  3. Step 3: Cross multiply
    553,675.50x = 869,859 × 869,859
  4. Step 4: Simplify right side
    553,675.50x = 756,654,679,881
  5. Step 5: Solve for x
    x = 756,654,679,881/553,675.50
  6. Step 6: Final answer
    x = 1,366,603.15

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.