Home / 2,172,958.40-2,998,541.12-1,206,042.24

Finding the Fourth Proportional to 2,172,958.40, 2,998,541.12 and 1,206,042.24

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Solution

The fourth proportional to 2,172,958.40, 2,998,541.12 and 1,206,042.24 is: 1,664,259.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,958.40 : 2,998,541.12 = 1,206,042.24 : x
  2. Step 2: Convert to fraction form
    2,172,958.40/2,998,541.12 = 1,206,042.24/x
  3. Step 3: Cross multiply
    2,172,958.40x = 2,998,541.12 × 1,206,042.24
  4. Step 4: Simplify right side
    2,172,958.40x = 3,616,367,249,096.91
  5. Step 5: Solve for x
    x = 3,616,367,249,096.91/2,172,958.40
  6. Step 6: Final answer
    x = 1,664,259.77

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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.