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Finding the Fourth Proportional to 454,970.40, 682,455.60 and 437,474.40

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Solution

The fourth proportional to 454,970.40, 682,455.60 and 437,474.40 is: 656,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,970.40 : 682,455.60 = 437,474.40 : x
  2. Step 2: Convert to fraction form
    454,970.40/682,455.60 = 437,474.40/x
  3. Step 3: Cross multiply
    454,970.40x = 682,455.60 × 437,474.40
  4. Step 4: Simplify right side
    454,970.40x = 298,556,854,136.64
  5. Step 5: Solve for x
    x = 298,556,854,136.64/454,970.40
  6. Step 6: Final answer
    x = 656,211.60

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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.