Home / 1,443,878.75-1,992,761.15-831,914.23

Finding the Fourth Proportional to 1,443,878.75, 1,992,761.15 and 831,914.23

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Solution

The fourth proportional to 1,443,878.75, 1,992,761.15 and 831,914.23 is: 1,148,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,878.75 : 1,992,761.15 = 831,914.23 : x
  2. Step 2: Convert to fraction form
    1,443,878.75/1,992,761.15 = 831,914.23/x
  3. Step 3: Cross multiply
    1,443,878.75x = 1,992,761.15 × 831,914.23
  4. Step 4: Simplify right side
    1,443,878.75x = 1,657,806,357,676.16
  5. Step 5: Solve for x
    x = 1,657,806,357,676.16/1,443,878.75
  6. Step 6: Final answer
    x = 1,148,161.75

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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.