Home / 2,239,817.76-3,090,836.88-1,272,820.32

Finding the Fourth Proportional to 2,239,817.76, 3,090,836.88 and 1,272,820.32

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Solution

The fourth proportional to 2,239,817.76, 3,090,836.88 and 1,272,820.32 is: 1,756,428.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239,817.76 : 3,090,836.88 = 1,272,820.32 : x
  2. Step 2: Convert to fraction form
    2,239,817.76/3,090,836.88 = 1,272,820.32/x
  3. Step 3: Cross multiply
    2,239,817.76x = 3,090,836.88 × 1,272,820.32
  4. Step 4: Simplify right side
    2,239,817.76x = 3,934,079,986,669.40
  5. Step 5: Solve for x
    x = 3,934,079,986,669.40/2,239,817.76
  6. Step 6: Final answer
    x = 1,756,428.61

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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.