Home / 436,442.72-654,664.14-120,899.79

Finding the Fourth Proportional to 436,442.72, 654,664.14 and 120,899.79

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Solution

The fourth proportional to 436,442.72, 654,664.14 and 120,899.79 is: 181,349.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,442.72 : 654,664.14 = 120,899.79 : x
  2. Step 2: Convert to fraction form
    436,442.72/654,664.14 = 120,899.79/x
  3. Step 3: Cross multiply
    436,442.72x = 654,664.14 × 120,899.79
  4. Step 4: Simplify right side
    436,442.72x = 79,148,757,046.53
  5. Step 5: Solve for x
    x = 79,148,757,046.53/436,442.72
  6. Step 6: Final answer
    x = 181,349.70

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1.5x scale

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.