Home / 436,320.46-654,481.59-120,778.30

Finding the Fourth Proportional to 436,320.46, 654,481.59 and 120,778.30

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Solution

The fourth proportional to 436,320.46, 654,481.59 and 120,778.30 is: 181,167.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,320.46 : 654,481.59 = 120,778.30 : x
  2. Step 2: Convert to fraction form
    436,320.46/654,481.59 = 120,778.30/x
  3. Step 3: Cross multiply
    436,320.46x = 654,481.59 × 120,778.30
  4. Step 4: Simplify right side
    436,320.46x = 79,047,173,821.50
  5. Step 5: Solve for x
    x = 79,047,173,821.50/436,320.46
  6. Step 6: Final answer
    x = 181,167.70

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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.