Home / 436,308.21-654,476.63-120,738.69

Finding the Fourth Proportional to 436,308.21, 654,476.63 and 120,738.69

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Solution

The fourth proportional to 436,308.21, 654,476.63 and 120,738.69 is: 181,111.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,308.21 : 654,476.63 = 120,738.69 : x
  2. Step 2: Convert to fraction form
    436,308.21/654,476.63 = 120,738.69/x
  3. Step 3: Cross multiply
    436,308.21x = 654,476.63 × 120,738.69
  4. Step 4: Simplify right side
    436,308.21x = 79,020,650,338.12
  5. Step 5: Solve for x
    x = 79,020,650,338.12/436,308.21
  6. Step 6: Final answer
    x = 181,111.99

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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.