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Finding the Third Proportional to 553,675.50 and 878,445

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Solution

The third proportional to 553,675.50 and 878,445 is: 1,393,714.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,675.50 : 878,445 = 878,445 : x
  2. Step 2: Convert to fraction form
    553,675.50/878,445 = 878,445/x
  3. Step 3: Cross multiply
    553,675.50x = 878,445 × 878,445
  4. Step 4: Simplify right side
    553,675.50x = 771,665,618,025
  5. Step 5: Solve for x
    x = 771,665,618,025/553,675.50
  6. Step 6: Final answer
    x = 1,393,714.58

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.