Home / 1,426,021.92-2,138,925.96-415,151.64

Finding the Fourth Proportional to 1,426,021.92, 2,138,925.96 and 415,151.64

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Solution

The fourth proportional to 1,426,021.92, 2,138,925.96 and 415,151.64 is: 622,696.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,021.92 : 2,138,925.96 = 415,151.64 : x
  2. Step 2: Convert to fraction form
    1,426,021.92/2,138,925.96 = 415,151.64/x
  3. Step 3: Cross multiply
    1,426,021.92x = 2,138,925.96 × 415,151.64
  4. Step 4: Simplify right side
    1,426,021.92x = 887,978,620,132.58
  5. Step 5: Solve for x
    x = 887,978,620,132.58/1,426,021.92
  6. Step 6: Final answer
    x = 622,696.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.