Home / 1,292,021.25-1,782,989.33-719,196.74

Finding the Fourth Proportional to 1,292,021.25, 1,782,989.33 and 719,196.74

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Solution

The fourth proportional to 1,292,021.25, 1,782,989.33 and 719,196.74 is: 992,491.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,021.25 : 1,782,989.33 = 719,196.74 : x
  2. Step 2: Convert to fraction form
    1,292,021.25/1,782,989.33 = 719,196.74/x
  3. Step 3: Cross multiply
    1,292,021.25x = 1,782,989.33 × 719,196.74
  4. Step 4: Simplify right side
    1,292,021.25x = 1,282,320,107,766.06
  5. Step 5: Solve for x
    x = 1,282,320,107,766.06/1,292,021.25
  6. Step 6: Final answer
    x = 992,491.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.