Home / 1,608,424.29-2,219,538.92-920,109.78

Finding the Fourth Proportional to 1,608,424.29, 2,219,538.92 and 920,109.78

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Solution

The fourth proportional to 1,608,424.29, 2,219,538.92 and 920,109.78 is: 1,269,701.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608,424.29 : 2,219,538.92 = 920,109.78 : x
  2. Step 2: Convert to fraction form
    1,608,424.29/2,219,538.92 = 920,109.78/x
  3. Step 3: Cross multiply
    1,608,424.29x = 2,219,538.92 × 920,109.78
  4. Step 4: Simplify right side
    1,608,424.29x = 2,042,219,462,782.09
  5. Step 5: Solve for x
    x = 2,042,219,462,782.09/1,608,424.29
  6. Step 6: Final answer
    x = 1,269,701.95

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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.