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Finding the Fourth Proportional to 891,563, 1,229,432.13 and 762,927.29

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Solution

The fourth proportional to 891,563, 1,229,432.13 and 762,927.29 is: 1,052,048.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,563 : 1,229,432.13 = 762,927.29 : x
  2. Step 2: Convert to fraction form
    891,563/1,229,432.13 = 762,927.29/x
  3. Step 3: Cross multiply
    891,563x = 1,229,432.13 × 762,927.29
  4. Step 4: Simplify right side
    891,563x = 937,967,323,179.83
  5. Step 5: Solve for x
    x = 937,967,323,179.83/891,563
  6. Step 6: Final answer
    x = 1,052,048.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.