Home / 762,692.13-1,143,589.64-289,410.75

Finding the Fourth Proportional to 762,692.13, 1,143,589.64 and 289,410.75

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Solution

The fourth proportional to 762,692.13, 1,143,589.64 and 289,410.75 is: 433,945.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,692.13 : 1,143,589.64 = 289,410.75 : x
  2. Step 2: Convert to fraction form
    762,692.13/1,143,589.64 = 289,410.75/x
  3. Step 3: Cross multiply
    762,692.13x = 1,143,589.64 × 289,410.75
  4. Step 4: Simplify right side
    762,692.13x = 330,967,133,957.58
  5. Step 5: Solve for x
    x = 330,967,133,957.58/762,692.13
  6. Step 6: Final answer
    x = 433,945.91

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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.