Home / 1,068,828.18-1,474,993.29-639,108.33

Finding the Fourth Proportional to 1,068,828.18, 1,474,993.29 and 639,108.33

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Solution

The fourth proportional to 1,068,828.18, 1,474,993.29 and 639,108.33 is: 881,975.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,828.18 : 1,474,993.29 = 639,108.33 : x
  2. Step 2: Convert to fraction form
    1,068,828.18/1,474,993.29 = 639,108.33/x
  3. Step 3: Cross multiply
    1,068,828.18x = 1,474,993.29 × 639,108.33
  4. Step 4: Simplify right side
    1,068,828.18x = 942,680,498,333.11
  5. Step 5: Solve for x
    x = 942,680,498,333.11/1,068,828.18
  6. Step 6: Final answer
    x = 881,975.72

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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.