Home / 1,384,195.86-1,909,829.37-810,928.02

Finding the Fourth Proportional to 1,384,195.86, 1,909,829.37 and 810,928.02

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Solution

The fourth proportional to 1,384,195.86, 1,909,829.37 and 810,928.02 is: 1,118,869.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,195.86 : 1,909,829.37 = 810,928.02 : x
  2. Step 2: Convert to fraction form
    1,384,195.86/1,909,829.37 = 810,928.02/x
  3. Step 3: Cross multiply
    1,384,195.86x = 1,909,829.37 × 810,928.02
  4. Step 4: Simplify right side
    1,384,195.86x = 1,548,734,149,551.95
  5. Step 5: Solve for x
    x = 1,548,734,149,551.95/1,384,195.86
  6. Step 6: Final answer
    x = 1,118,869.23

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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.