Home / 745,293.80-1,028,504.04-405,761.24

Finding the Fourth Proportional to 745,293.80, 1,028,504.04 and 405,761.24

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Solution

The fourth proportional to 745,293.80, 1,028,504.04 and 405,761.24 is: 559,949.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,293.80 : 1,028,504.04 = 405,761.24 : x
  2. Step 2: Convert to fraction form
    745,293.80/1,028,504.04 = 405,761.24/x
  3. Step 3: Cross multiply
    745,293.80x = 1,028,504.04 × 405,761.24
  4. Step 4: Simplify right side
    745,293.80x = 417,327,074,615.41
  5. Step 5: Solve for x
    x = 417,327,074,615.41/745,293.80
  6. Step 6: Final answer
    x = 559,949.75

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Double scale
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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.