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Finding the Third Proportional to 358,458 and 782,132

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Solution

The third proportional to 358,458 and 782,132 is: 1,706,561.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,458 : 782,132 = 782,132 : x
  2. Step 2: Convert to fraction form
    358,458/782,132 = 782,132/x
  3. Step 3: Cross multiply
    358,458x = 782,132 × 782,132
  4. Step 4: Simplify right side
    358,458x = 611,730,465,424
  5. Step 5: Solve for x
    x = 611,730,465,424/358,458
  6. Step 6: Final answer
    x = 1,706,561.06

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.