Home / 1,129,121.52-1,556,039.80-1,108,371.36

Finding the Fourth Proportional to 1,129,121.52, 1,556,039.80 and 1,108,371.36

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Solution

The fourth proportional to 1,129,121.52, 1,556,039.80 and 1,108,371.36 is: 1,527,444.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,121.52 : 1,556,039.80 = 1,108,371.36 : x
  2. Step 2: Convert to fraction form
    1,129,121.52/1,556,039.80 = 1,108,371.36/x
  3. Step 3: Cross multiply
    1,129,121.52x = 1,556,039.80 × 1,108,371.36
  4. Step 4: Simplify right side
    1,129,121.52x = 1,724,669,949,340.13
  5. Step 5: Solve for x
    x = 1,724,669,949,340.13/1,129,121.52
  6. Step 6: Final answer
    x = 1,527,444.05

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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.