Home / 827,042.64-1,239,634.11-421,095.36

Finding the Fourth Proportional to 827,042.64, 1,239,634.11 and 421,095.36

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Solution

The fourth proportional to 827,042.64, 1,239,634.11 and 421,095.36 is: 631,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,042.64 : 1,239,634.11 = 421,095.36 : x
  2. Step 2: Convert to fraction form
    827,042.64/1,239,634.11 = 421,095.36/x
  3. Step 3: Cross multiply
    827,042.64x = 1,239,634.11 × 421,095.36
  4. Step 4: Simplify right side
    827,042.64x = 522,004,171,818.73
  5. Step 5: Solve for x
    x = 522,004,171,818.73/827,042.64
  6. Step 6: Final answer
    x = 631,169.60

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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.