Home / 1,372,977.28-1,894,703.40-769,365.28

Finding the Fourth Proportional to 1,372,977.28, 1,894,703.40 and 769,365.28

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Solution

The fourth proportional to 1,372,977.28, 1,894,703.40 and 769,365.28 is: 1,061,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,977.28 : 1,894,703.40 = 769,365.28 : x
  2. Step 2: Convert to fraction form
    1,372,977.28/1,894,703.40 = 769,365.28/x
  3. Step 3: Cross multiply
    1,372,977.28x = 1,894,703.40 × 769,365.28
  4. Step 4: Simplify right side
    1,372,977.28x = 1,457,719,011,857.95
  5. Step 5: Solve for x
    x = 1,457,719,011,857.95/1,372,977.28
  6. Step 6: Final answer
    x = 1,061,721.15

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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.