Home / 1,913,898.08-2,640,891.12-1,086,842.72

Finding the Fourth Proportional to 1,913,898.08, 2,640,891.12 and 1,086,842.72

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Solution

The fourth proportional to 1,913,898.08, 2,640,891.12 and 1,086,842.72 is: 1,499,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,898.08 : 2,640,891.12 = 1,086,842.72 : x
  2. Step 2: Convert to fraction form
    1,913,898.08/2,640,891.12 = 1,086,842.72/x
  3. Step 3: Cross multiply
    1,913,898.08x = 2,640,891.12 × 1,086,842.72
  4. Step 4: Simplify right side
    1,913,898.08x = 2,870,233,288,084.65
  5. Step 5: Solve for x
    x = 2,870,233,288,084.65/1,913,898.08
  6. Step 6: Final answer
    x = 1,499,679.28

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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.