Home / 1,127,973.50-1,555,694.80-991,718.54

Finding the Fourth Proportional to 1,127,973.50, 1,555,694.80 and 991,718.54

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Solution

The fourth proportional to 1,127,973.50, 1,555,694.80 and 991,718.54 is: 1,367,772.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,973.50 : 1,555,694.80 = 991,718.54 : x
  2. Step 2: Convert to fraction form
    1,127,973.50/1,555,694.80 = 991,718.54/x
  3. Step 3: Cross multiply
    1,127,973.50x = 1,555,694.80 × 991,718.54
  4. Step 4: Simplify right side
    1,127,973.50x = 1,542,811,365,483.82
  5. Step 5: Solve for x
    x = 1,542,811,365,483.82/1,127,973.50
  6. Step 6: Final answer
    x = 1,367,772.71

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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.