Home / 1,428,615.52-2,142,917.22-517,584.37

Finding the Fourth Proportional to 1,428,615.52, 2,142,917.22 and 517,584.37

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Solution

The fourth proportional to 1,428,615.52, 2,142,917.22 and 517,584.37 is: 776,374.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,615.52 : 2,142,917.22 = 517,584.37 : x
  2. Step 2: Convert to fraction form
    1,428,615.52/2,142,917.22 = 517,584.37/x
  3. Step 3: Cross multiply
    1,428,615.52x = 2,142,917.22 × 517,584.37
  4. Step 4: Simplify right side
    1,428,615.52x = 1,109,140,459,275.85
  5. Step 5: Solve for x
    x = 1,109,140,459,275.85/1,428,615.52
  6. Step 6: Final answer
    x = 776,374.36

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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.