Home / 745,291.38-1,028,502.26-405,759.63

Finding the Fourth Proportional to 745,291.38, 1,028,502.26 and 405,759.63

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Solution

The fourth proportional to 745,291.38, 1,028,502.26 and 405,759.63 is: 559,948.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,291.38 : 1,028,502.26 = 405,759.63 : x
  2. Step 2: Convert to fraction form
    745,291.38/1,028,502.26 = 405,759.63/x
  3. Step 3: Cross multiply
    745,291.38x = 1,028,502.26 × 405,759.63
  4. Step 4: Simplify right side
    745,291.38x = 417,324,694,442.97
  5. Step 5: Solve for x
    x = 417,324,694,442.97/745,291.38
  6. Step 6: Final answer
    x = 559,948.37

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Double scale
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1.5x scale

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.