Home / 436,318.96-654,479.34-120,776.80

Finding the Fourth Proportional to 436,318.96, 654,479.34 and 120,776.80

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Solution

The fourth proportional to 436,318.96, 654,479.34 and 120,776.80 is: 181,165.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,318.96 : 654,479.34 = 120,776.80 : x
  2. Step 2: Convert to fraction form
    436,318.96/654,479.34 = 120,776.80/x
  3. Step 3: Cross multiply
    436,318.96x = 654,479.34 × 120,776.80
  4. Step 4: Simplify right side
    436,318.96x = 79,045,920,351.31
  5. Step 5: Solve for x
    x = 79,045,920,351.31/436,318.96
  6. Step 6: Final answer
    x = 181,165.45

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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.