Home / 1,272,959.63-1,909,031.04-419,839.48

Finding the Fourth Proportional to 1,272,959.63, 1,909,031.04 and 419,839.48

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Solution

The fourth proportional to 1,272,959.63, 1,909,031.04 and 419,839.48 is: 629,624.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,959.63 : 1,909,031.04 = 419,839.48 : x
  2. Step 2: Convert to fraction form
    1,272,959.63/1,909,031.04 = 419,839.48/x
  3. Step 3: Cross multiply
    1,272,959.63x = 1,909,031.04 × 419,839.48
  4. Step 4: Simplify right side
    1,272,959.63x = 801,486,589,592.30
  5. Step 5: Solve for x
    x = 801,486,589,592.30/1,272,959.63
  6. Step 6: Final answer
    x = 629,624.51

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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.