Home / 775,607.25-1,070,351.37-431,470.65

Finding the Fourth Proportional to 775,607.25, 1,070,351.37 and 431,470.65

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Solution

The fourth proportional to 775,607.25, 1,070,351.37 and 431,470.65 is: 595,436.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,607.25 : 1,070,351.37 = 431,470.65 : x
  2. Step 2: Convert to fraction form
    775,607.25/1,070,351.37 = 431,470.65/x
  3. Step 3: Cross multiply
    775,607.25x = 1,070,351.37 × 431,470.65
  4. Step 4: Simplify right side
    775,607.25x = 461,825,201,342.29
  5. Step 5: Solve for x
    x = 461,825,201,342.29/775,607.25
  6. Step 6: Final answer
    x = 595,436.93

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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.