Home / 710,081.37-979,918.97-404,142.75

Finding the Fourth Proportional to 710,081.37, 979,918.97 and 404,142.75

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Solution

The fourth proportional to 710,081.37, 979,918.97 and 404,142.75 is: 557,720.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,081.37 : 979,918.97 = 404,142.75 : x
  2. Step 2: Convert to fraction form
    710,081.37/979,918.97 = 404,142.75/x
  3. Step 3: Cross multiply
    710,081.37x = 979,918.97 × 404,142.75
  4. Step 4: Simplify right side
    710,081.37x = 396,027,145,292.25
  5. Step 5: Solve for x
    x = 396,027,145,292.25/710,081.37
  6. Step 6: Final answer
    x = 557,720.79

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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.