Home / 3,128,964.71-4,695,421.50-1,331,845.29

Finding the Fourth Proportional to 3,128,964.71, 4,695,421.50 and 1,331,845.29

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Solution

The fourth proportional to 3,128,964.71, 4,695,421.50 and 1,331,845.29 is: 1,998,608.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,964.71 : 4,695,421.50 = 1,331,845.29 : x
  2. Step 2: Convert to fraction form
    3,128,964.71/4,695,421.50 = 1,331,845.29/x
  3. Step 3: Cross multiply
    3,128,964.71x = 4,695,421.50 × 1,331,845.29
  4. Step 4: Simplify right side
    3,128,964.71x = 6,253,575,009,339.74
  5. Step 5: Solve for x
    x = 6,253,575,009,339.74/3,128,964.71
  6. Step 6: Final answer
    x = 1,998,608.36

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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.