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Finding the Third Proportional to 859,491 and 1,307,909.25

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Solution

The third proportional to 859,491 and 1,307,909.25 is: 1,990,278.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,491 : 1,307,909.25 = 1,307,909.25 : x
  2. Step 2: Convert to fraction form
    859,491/1,307,909.25 = 1,307,909.25/x
  3. Step 3: Cross multiply
    859,491x = 1,307,909.25 × 1,307,909.25
  4. Step 4: Simplify right side
    859,491x = 1,710,626,606,235.56
  5. Step 5: Solve for x
    x = 1,710,626,606,235.56/859,491
  6. Step 6: Final answer
    x = 1,990,278.67

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.