Home / 1,272,959.13-1,909,030.29-419,838.98

Finding the Fourth Proportional to 1,272,959.13, 1,909,030.29 and 419,838.98

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Solution

The fourth proportional to 1,272,959.13, 1,909,030.29 and 419,838.98 is: 629,623.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,959.13 : 1,909,030.29 = 419,838.98 : x
  2. Step 2: Convert to fraction form
    1,272,959.13/1,909,030.29 = 419,838.98/x
  3. Step 3: Cross multiply
    1,272,959.13x = 1,909,030.29 × 419,838.98
  4. Step 4: Simplify right side
    1,272,959.13x = 801,485,320,197.55
  5. Step 5: Solve for x
    x = 801,485,320,197.55/1,272,959.13
  6. Step 6: Final answer
    x = 629,623.77

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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.