Home / 436,325.46-654,489.09-120,783.30

Finding the Fourth Proportional to 436,325.46, 654,489.09 and 120,783.30

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Solution

The fourth proportional to 436,325.46, 654,489.09 and 120,783.30 is: 181,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,325.46 : 654,489.09 = 120,783.30 : x
  2. Step 2: Convert to fraction form
    436,325.46/654,489.09 = 120,783.30/x
  3. Step 3: Cross multiply
    436,325.46x = 654,489.09 × 120,783.30
  4. Step 4: Simplify right side
    436,325.46x = 79,051,352,104.20
  5. Step 5: Solve for x
    x = 79,051,352,104.20/436,325.46
  6. Step 6: Final answer
    x = 181,175.20

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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.