Home / 743,174.38-1,025,546.26-420,886.80

Finding the Fourth Proportional to 743,174.38, 1,025,546.26 and 420,886.80

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Solution

The fourth proportional to 743,174.38, 1,025,546.26 and 420,886.80 is: 580,804.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,174.38 : 1,025,546.26 = 420,886.80 : x
  2. Step 2: Convert to fraction form
    743,174.38/1,025,546.26 = 420,886.80/x
  3. Step 3: Cross multiply
    743,174.38x = 1,025,546.26 × 420,886.80
  4. Step 4: Simplify right side
    743,174.38x = 431,638,883,623.37
  5. Step 5: Solve for x
    x = 431,638,883,623.37/743,174.38
  6. Step 6: Final answer
    x = 580,804.31

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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.