Home / 1,212,062.71-1,672,659.42-668,217.96

Finding the Fourth Proportional to 1,212,062.71, 1,672,659.42 and 668,217.96

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Solution

The fourth proportional to 1,212,062.71, 1,672,659.42 and 668,217.96 is: 922,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,062.71 : 1,672,659.42 = 668,217.96 : x
  2. Step 2: Convert to fraction form
    1,212,062.71/1,672,659.42 = 668,217.96/x
  3. Step 3: Cross multiply
    1,212,062.71x = 1,672,659.42 × 668,217.96
  4. Step 4: Simplify right side
    1,212,062.71x = 1,117,701,053,702.80
  5. Step 5: Solve for x
    x = 1,117,701,053,702.80/1,212,062.71
  6. Step 6: Final answer
    x = 922,147.88

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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.