Home / 745,443.44-1,028,713.20-405,913.04

Finding the Fourth Proportional to 745,443.44, 1,028,713.20 and 405,913.04

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Solution

The fourth proportional to 745,443.44, 1,028,713.20 and 405,913.04 is: 560,160.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,443.44 : 1,028,713.20 = 405,913.04 : x
  2. Step 2: Convert to fraction form
    745,443.44/1,028,713.20 = 405,913.04/x
  3. Step 3: Cross multiply
    745,443.44x = 1,028,713.20 × 405,913.04
  4. Step 4: Simplify right side
    745,443.44x = 417,568,102,300.13
  5. Step 5: Solve for x
    x = 417,568,102,300.13/745,443.44
  6. Step 6: Final answer
    x = 560,160.68

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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.