Home / 1,394,969.28-1,912,479.60-1,369,775.04

Finding the Fourth Proportional to 1,394,969.28, 1,912,479.60 and 1,369,775.04

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Solution

The fourth proportional to 1,394,969.28, 1,912,479.60 and 1,369,775.04 is: 1,877,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,969.28 : 1,912,479.60 = 1,369,775.04 : x
  2. Step 2: Convert to fraction form
    1,394,969.28/1,912,479.60 = 1,369,775.04/x
  3. Step 3: Cross multiply
    1,394,969.28x = 1,912,479.60 × 1,369,775.04
  4. Step 4: Simplify right side
    1,394,969.28x = 2,619,666,820,589.18
  5. Step 5: Solve for x
    x = 2,619,666,820,589.18/1,394,969.28
  6. Step 6: Final answer
    x = 1,877,938.72

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.