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Finding the Third Proportional to 620,308.76 and 1,343,670.40

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Solution

The third proportional to 620,308.76 and 1,343,670.40 is: 2,910,566.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,308.76 : 1,343,670.40 = 1,343,670.40 : x
  2. Step 2: Convert to fraction form
    620,308.76/1,343,670.40 = 1,343,670.40/x
  3. Step 3: Cross multiply
    620,308.76x = 1,343,670.40 × 1,343,670.40
  4. Step 4: Simplify right side
    620,308.76x = 1,805,450,139,637.19
  5. Step 5: Solve for x
    x = 1,805,450,139,637.19/620,308.76
  6. Step 6: Final answer
    x = 2,910,566.90

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.