Home / 1,068,822.47-1,474,985.39-639,102.59

Finding the Fourth Proportional to 1,068,822.47, 1,474,985.39 and 639,102.59

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Solution

The fourth proportional to 1,068,822.47, 1,474,985.39 and 639,102.59 is: 881,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068,822.47 : 1,474,985.39 = 639,102.59 : x
  2. Step 2: Convert to fraction form
    1,068,822.47/1,474,985.39 = 639,102.59/x
  3. Step 3: Cross multiply
    1,068,822.47x = 1,474,985.39 × 639,102.59
  4. Step 4: Simplify right side
    1,068,822.47x = 942,666,979,765.65
  5. Step 5: Solve for x
    x = 942,666,979,765.65/1,068,822.47
  6. Step 6: Final answer
    x = 881,967.78

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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.