Home / 2,239,643.80-3,090,575.28-1,272,639.88

Finding the Fourth Proportional to 2,239,643.80, 3,090,575.28 and 1,272,639.88

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Solution

The fourth proportional to 2,239,643.80, 3,090,575.28 and 1,272,639.88 is: 1,756,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239,643.80 : 3,090,575.28 = 1,272,639.88 : x
  2. Step 2: Convert to fraction form
    2,239,643.80/3,090,575.28 = 1,272,639.88/x
  3. Step 3: Cross multiply
    2,239,643.80x = 3,090,575.28 × 1,272,639.88
  4. Step 4: Simplify right side
    2,239,643.80x = 3,933,189,353,470.17
  5. Step 5: Solve for x
    x = 3,933,189,353,470.17/2,239,643.80
  6. Step 6: Final answer
    x = 1,756,167.37

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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.