Home / 1,108,932.80-1,663,399.20-805,814.60

Finding the Fourth Proportional to 1,108,932.80, 1,663,399.20 and 805,814.60

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Solution

The fourth proportional to 1,108,932.80, 1,663,399.20 and 805,814.60 is: 1,208,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,932.80 : 1,663,399.20 = 805,814.60 : x
  2. Step 2: Convert to fraction form
    1,108,932.80/1,663,399.20 = 805,814.60/x
  3. Step 3: Cross multiply
    1,108,932.80x = 1,663,399.20 × 805,814.60
  4. Step 4: Simplify right side
    1,108,932.80x = 1,340,391,360,988.32
  5. Step 5: Solve for x
    x = 1,340,391,360,988.32/1,108,932.80
  6. Step 6: Final answer
    x = 1,208,721.90

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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.