Home / 1,027,243.55-1,539,863.56-428,376.13

Finding the Fourth Proportional to 1,027,243.55, 1,539,863.56 and 428,376.13

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Solution

The fourth proportional to 1,027,243.55, 1,539,863.56 and 428,376.13 is: 642,146.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027,243.55 : 1,539,863.56 = 428,376.13 : x
  2. Step 2: Convert to fraction form
    1,027,243.55/1,539,863.56 = 428,376.13/x
  3. Step 3: Cross multiply
    1,027,243.55x = 1,539,863.56 × 428,376.13
  4. Step 4: Simplify right side
    1,027,243.55x = 659,640,789,246.63
  5. Step 5: Solve for x
    x = 659,640,789,246.63/1,027,243.55
  6. Step 6: Final answer
    x = 642,146.44

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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.