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Finding the Third Proportional to 687,109.08 and 1,069,929

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Solution

The third proportional to 687,109.08 and 1,069,929 is: 1,666,035.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,109.08 : 1,069,929 = 1,069,929 : x
  2. Step 2: Convert to fraction form
    687,109.08/1,069,929 = 1,069,929/x
  3. Step 3: Cross multiply
    687,109.08x = 1,069,929 × 1,069,929
  4. Step 4: Simplify right side
    687,109.08x = 1,144,748,065,041
  5. Step 5: Solve for x
    x = 1,144,748,065,041/687,109.08
  6. Step 6: Final answer
    x = 1,666,035.43

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.