Home / 1,436,767.80-2,154,167.55-678,972.30

Finding the Fourth Proportional to 1,436,767.80, 2,154,167.55 and 678,972.30

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Solution

The fourth proportional to 1,436,767.80, 2,154,167.55 and 678,972.30 is: 1,017,993.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,767.80 : 2,154,167.55 = 678,972.30 : x
  2. Step 2: Convert to fraction form
    1,436,767.80/2,154,167.55 = 678,972.30/x
  3. Step 3: Cross multiply
    1,436,767.80x = 2,154,167.55 × 678,972.30
  4. Step 4: Simplify right side
    1,436,767.80x = 1,462,620,096,008.87
  5. Step 5: Solve for x
    x = 1,462,620,096,008.87/1,436,767.80
  6. Step 6: Final answer
    x = 1,017,993.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.