Home / 991,324.80-1,485,947.52-485,187.84

Finding the Fourth Proportional to 991,324.80, 1,485,947.52 and 485,187.84

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Solution

The fourth proportional to 991,324.80, 1,485,947.52 and 485,187.84 is: 727,272.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,324.80 : 1,485,947.52 = 485,187.84 : x
  2. Step 2: Convert to fraction form
    991,324.80/1,485,947.52 = 485,187.84/x
  3. Step 3: Cross multiply
    991,324.80x = 1,485,947.52 × 485,187.84
  4. Step 4: Simplify right side
    991,324.80x = 720,963,667,582.16
  5. Step 5: Solve for x
    x = 720,963,667,582.16/991,324.80
  6. Step 6: Final answer
    x = 727,272.91

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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.