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Finding the Third Proportional to 762,472 and 1,121,520

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Solution

The third proportional to 762,472 and 1,121,520 is: 1,649,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,472 : 1,121,520 = 1,121,520 : x
  2. Step 2: Convert to fraction form
    762,472/1,121,520 = 1,121,520/x
  3. Step 3: Cross multiply
    762,472x = 1,121,520 × 1,121,520
  4. Step 4: Simplify right side
    762,472x = 1,257,807,110,400
  5. Step 5: Solve for x
    x = 1,257,807,110,400/762,472
  6. Step 6: Final answer
    x = 1,649,643.67

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.