Home / 1,118,991.64-1,679,262.64-445,003.88

Finding the Fourth Proportional to 1,118,991.64, 1,679,262.64 and 445,003.88

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Solution

The fourth proportional to 1,118,991.64, 1,679,262.64 and 445,003.88 is: 667,814.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,991.64 : 1,679,262.64 = 445,003.88 : x
  2. Step 2: Convert to fraction form
    1,118,991.64/1,679,262.64 = 445,003.88/x
  3. Step 3: Cross multiply
    1,118,991.64x = 1,679,262.64 × 445,003.88
  4. Step 4: Simplify right side
    1,118,991.64x = 747,278,390,339.04
  5. Step 5: Solve for x
    x = 747,278,390,339.04/1,118,991.64
  6. Step 6: Final answer
    x = 667,814.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.