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Finding the Fourth Proportional to 403,380.40, 605,070.60 and 377,136.40

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Solution

The fourth proportional to 403,380.40, 605,070.60 and 377,136.40 is: 565,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,380.40 : 605,070.60 = 377,136.40 : x
  2. Step 2: Convert to fraction form
    403,380.40/605,070.60 = 377,136.40/x
  3. Step 3: Cross multiply
    403,380.40x = 605,070.60 × 377,136.40
  4. Step 4: Simplify right side
    403,380.40x = 228,194,147,829.84
  5. Step 5: Solve for x
    x = 228,194,147,829.84/403,380.40
  6. Step 6: Final answer
    x = 565,704.60

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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.