Home / 420,375.04-579,917.73-248,177.64

Finding the Fourth Proportional to 420,375.04, 579,917.73 and 248,177.64

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Solution

The fourth proportional to 420,375.04, 579,917.73 and 248,177.64 is: 342,367.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,375.04 : 579,917.73 = 248,177.64 : x
  2. Step 2: Convert to fraction form
    420,375.04/579,917.73 = 248,177.64/x
  3. Step 3: Cross multiply
    420,375.04x = 579,917.73 × 248,177.64
  4. Step 4: Simplify right side
    420,375.04x = 143,922,613,296.15
  5. Step 5: Solve for x
    x = 143,922,613,296.15/420,375.04
  6. Step 6: Final answer
    x = 342,367.17

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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.