Home / 1,109,616.17-1,531,183.10-679,837.86

Finding the Fourth Proportional to 1,109,616.17, 1,531,183.10 and 679,837.86

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Solution

The fourth proportional to 1,109,616.17, 1,531,183.10 and 679,837.86 is: 938,122.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,616.17 : 1,531,183.10 = 679,837.86 : x
  2. Step 2: Convert to fraction form
    1,109,616.17/1,531,183.10 = 679,837.86/x
  3. Step 3: Cross multiply
    1,109,616.17x = 1,531,183.10 × 679,837.86
  4. Step 4: Simplify right side
    1,109,616.17x = 1,040,956,238,572.98
  5. Step 5: Solve for x
    x = 1,040,956,238,572.98/1,109,616.17
  6. Step 6: Final answer
    x = 938,122.81

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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.