Home / 1,425,158.87-1,966,751.10-813,299.45

Finding the Fourth Proportional to 1,425,158.87, 1,966,751.10 and 813,299.45

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Solution

The fourth proportional to 1,425,158.87, 1,966,751.10 and 813,299.45 is: 1,122,371.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,158.87 : 1,966,751.10 = 813,299.45 : x
  2. Step 2: Convert to fraction form
    1,425,158.87/1,966,751.10 = 813,299.45/x
  3. Step 3: Cross multiply
    1,425,158.87x = 1,966,751.10 × 813,299.45
  4. Step 4: Simplify right side
    1,425,158.87x = 1,599,557,578,083.14
  5. Step 5: Solve for x
    x = 1,599,557,578,083.14/1,425,158.87
  6. Step 6: Final answer
    x = 1,122,371.42

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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.