Home / 1,434,488.97-1,979,607.69-789,911.76

Finding the Fourth Proportional to 1,434,488.97, 1,979,607.69 and 789,911.76

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Solution

The fourth proportional to 1,434,488.97, 1,979,607.69 and 789,911.76 is: 1,090,085.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,488.97 : 1,979,607.69 = 789,911.76 : x
  2. Step 2: Convert to fraction form
    1,434,488.97/1,979,607.69 = 789,911.76/x
  3. Step 3: Cross multiply
    1,434,488.97x = 1,979,607.69 × 789,911.76
  4. Step 4: Simplify right side
    1,434,488.97x = 1,563,715,394,517.43
  5. Step 5: Solve for x
    x = 1,563,715,394,517.43/1,434,488.97
  6. Step 6: Final answer
    x = 1,090,085.34

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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.