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Finding the Third Proportional to 287,457.61 and 625,250.39

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Solution

The third proportional to 287,457.61 and 625,250.39 is: 1,359,985.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,457.61 : 625,250.39 = 625,250.39 : x
  2. Step 2: Convert to fraction form
    287,457.61/625,250.39 = 625,250.39/x
  3. Step 3: Cross multiply
    287,457.61x = 625,250.39 × 625,250.39
  4. Step 4: Simplify right side
    287,457.61x = 390,938,050,976.72
  5. Step 5: Solve for x
    x = 390,938,050,976.72/287,457.61
  6. Step 6: Final answer
    x = 1,359,985.05

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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.