Home / 436,318.24-654,491.64-120,748.72

Finding the Fourth Proportional to 436,318.24, 654,491.64 and 120,748.72

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Solution

The fourth proportional to 436,318.24, 654,491.64 and 120,748.72 is: 181,127.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,318.24 : 654,491.64 = 120,748.72 : x
  2. Step 2: Convert to fraction form
    436,318.24/654,491.64 = 120,748.72/x
  3. Step 3: Cross multiply
    436,318.24x = 654,491.64 × 120,748.72
  4. Step 4: Simplify right side
    436,318.24x = 79,029,027,780.70
  5. Step 5: Solve for x
    x = 79,029,027,780.70/436,318.24
  6. Step 6: Final answer
    x = 181,127.03

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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.