Home / 864,451.76-1,295,790.84-331,829.36

Finding the Fourth Proportional to 864,451.76, 1,295,790.84 and 331,829.36

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Solution

The fourth proportional to 864,451.76, 1,295,790.84 and 331,829.36 is: 497,403.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,451.76 : 1,295,790.84 = 331,829.36 : x
  2. Step 2: Convert to fraction form
    864,451.76/1,295,790.84 = 331,829.36/x
  3. Step 3: Cross multiply
    864,451.76x = 1,295,790.84 × 331,829.36
  4. Step 4: Simplify right side
    864,451.76x = 429,981,445,131.06
  5. Step 5: Solve for x
    x = 429,981,445,131.06/864,451.76
  6. Step 6: Final answer
    x = 497,403.63

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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.