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Finding the Third Proportional to 570,128 and 1,239,486

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Solution

The third proportional to 570,128 and 1,239,486 is: 2,694,702.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,128 : 1,239,486 = 1,239,486 : x
  2. Step 2: Convert to fraction form
    570,128/1,239,486 = 1,239,486/x
  3. Step 3: Cross multiply
    570,128x = 1,239,486 × 1,239,486
  4. Step 4: Simplify right side
    570,128x = 1,536,325,544,196
  5. Step 5: Solve for x
    x = 1,536,325,544,196/570,128
  6. Step 6: Final answer
    x = 2,694,702.85

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.