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Finding the Third Proportional to 340,090 and 742,346

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Solution

The third proportional to 340,090 and 742,346 is: 1,620,387.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,090 : 742,346 = 742,346 : x
  2. Step 2: Convert to fraction form
    340,090/742,346 = 742,346/x
  3. Step 3: Cross multiply
    340,090x = 742,346 × 742,346
  4. Step 4: Simplify right side
    340,090x = 551,077,583,716
  5. Step 5: Solve for x
    x = 551,077,583,716/340,090
  6. Step 6: Final answer
    x = 1,620,387.50

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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.