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Finding the Fourth Proportional to 436,136.80, 654,205.20 and 362,408.80

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Solution

The fourth proportional to 436,136.80, 654,205.20 and 362,408.80 is: 543,613.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,136.80 : 654,205.20 = 362,408.80 : x
  2. Step 2: Convert to fraction form
    436,136.80/654,205.20 = 362,408.80/x
  3. Step 3: Cross multiply
    436,136.80x = 654,205.20 × 362,408.80
  4. Step 4: Simplify right side
    436,136.80x = 237,089,721,485.76
  5. Step 5: Solve for x
    x = 237,089,721,485.76/436,136.80
  6. Step 6: Final answer
    x = 543,613.20

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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.