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Finding the Third Proportional to 762,423 and 1,121,458

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Solution

The third proportional to 762,423 and 1,121,458 is: 1,649,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,423 : 1,121,458 = 1,121,458 : x
  2. Step 2: Convert to fraction form
    762,423/1,121,458 = 1,121,458/x
  3. Step 3: Cross multiply
    762,423x = 1,121,458 × 1,121,458
  4. Step 4: Simplify right side
    762,423x = 1,257,668,045,764
  5. Step 5: Solve for x
    x = 1,257,668,045,764/762,423
  6. Step 6: Final answer
    x = 1,649,567.30

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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.