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Finding the Third Proportional to 819,534 and 1,240,726.50

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Solution

The third proportional to 819,534 and 1,240,726.50 is: 1,878,387.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,534 : 1,240,726.50 = 1,240,726.50 : x
  2. Step 2: Convert to fraction form
    819,534/1,240,726.50 = 1,240,726.50/x
  3. Step 3: Cross multiply
    819,534x = 1,240,726.50 × 1,240,726.50
  4. Step 4: Simplify right side
    819,534x = 1,539,402,247,802.25
  5. Step 5: Solve for x
    x = 1,539,402,247,802.25/819,534
  6. Step 6: Final answer
    x = 1,878,387.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.