Home / 3,128,964.74-4,695,421.55-1,331,845.33

Finding the Fourth Proportional to 3,128,964.74, 4,695,421.55 and 1,331,845.33

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Solution

The fourth proportional to 3,128,964.74, 4,695,421.55 and 1,331,845.33 is: 1,998,608.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,964.74 : 4,695,421.55 = 1,331,845.33 : x
  2. Step 2: Convert to fraction form
    3,128,964.74/4,695,421.55 = 1,331,845.33/x
  3. Step 3: Cross multiply
    3,128,964.74x = 4,695,421.55 × 1,331,845.33
  4. Step 4: Simplify right side
    3,128,964.74x = 6,253,575,255,339.92
  5. Step 5: Solve for x
    x = 6,253,575,255,339.92/3,128,964.74
  6. Step 6: Final answer
    x = 1,998,608.42

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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.