Home / 436,485.97-654,538.08-220,211.64

Finding the Fourth Proportional to 436,485.97, 654,538.08 and 220,211.64

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Solution

The fourth proportional to 436,485.97, 654,538.08 and 220,211.64 is: 330,221.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,485.97 : 654,538.08 = 220,211.64 : x
  2. Step 2: Convert to fraction form
    436,485.97/654,538.08 = 220,211.64/x
  3. Step 3: Cross multiply
    436,485.97x = 654,538.08 × 220,211.64
  4. Step 4: Simplify right side
    436,485.97x = 144,136,904,039.25
  5. Step 5: Solve for x
    x = 144,136,904,039.25/436,485.97
  6. Step 6: Final answer
    x = 330,221.16

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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.