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Finding the Fourth Proportional to 436,429.22, 654,643.82 and 120,886.22

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Solution

The fourth proportional to 436,429.22, 654,643.82 and 120,886.22 is: 181,329.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,429.22 : 654,643.82 = 120,886.22 : x
  2. Step 2: Convert to fraction form
    436,429.22/654,643.82 = 120,886.22/x
  3. Step 3: Cross multiply
    436,429.22x = 654,643.82 × 120,886.22
  4. Step 4: Simplify right side
    436,429.22x = 79,137,418,784.99
  5. Step 5: Solve for x
    x = 79,137,418,784.99/436,429.22
  6. Step 6: Final answer
    x = 181,329.33

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Similar ratio
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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.