Home / 2,185,857.38-3,016,477.32-1,218,988.74

Finding the Fourth Proportional to 2,185,857.38, 3,016,477.32 and 1,218,988.74

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Solution

The fourth proportional to 2,185,857.38, 3,016,477.32 and 1,218,988.74 is: 1,682,201.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,857.38 : 3,016,477.32 = 1,218,988.74 : x
  2. Step 2: Convert to fraction form
    2,185,857.38/3,016,477.32 = 1,218,988.74/x
  3. Step 3: Cross multiply
    2,185,857.38x = 3,016,477.32 × 1,218,988.74
  4. Step 4: Simplify right side
    2,185,857.38x = 3,677,051,887,545.38
  5. Step 5: Solve for x
    x = 3,677,051,887,545.38/2,185,857.38
  6. Step 6: Final answer
    x = 1,682,201.19

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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.