Home / 1,143,429.21-1,577,723.67-659,817.90

Finding the Fourth Proportional to 1,143,429.21, 1,577,723.67 and 659,817.90

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Solution

The fourth proportional to 1,143,429.21, 1,577,723.67 and 659,817.90 is: 910,428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,429.21 : 1,577,723.67 = 659,817.90 : x
  2. Step 2: Convert to fraction form
    1,143,429.21/1,577,723.67 = 659,817.90/x
  3. Step 3: Cross multiply
    1,143,429.21x = 1,577,723.67 × 659,817.90
  4. Step 4: Simplify right side
    1,143,429.21x = 1,041,010,318,719.69
  5. Step 5: Solve for x
    x = 1,041,010,318,719.69/1,143,429.21
  6. Step 6: Final answer
    x = 910,428.31

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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.