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Finding the Fourth Proportional to 629,636.60, 944,685.30 and 255,697.40

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Solution

The fourth proportional to 629,636.60, 944,685.30 and 255,697.40 is: 383,639.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,636.60 : 944,685.30 = 255,697.40 : x
  2. Step 2: Convert to fraction form
    629,636.60/944,685.30 = 255,697.40/x
  3. Step 3: Cross multiply
    629,636.60x = 944,685.30 × 255,697.40
  4. Step 4: Simplify right side
    629,636.60x = 241,553,575,028.22
  5. Step 5: Solve for x
    x = 241,553,575,028.22/629,636.60
  6. Step 6: Final answer
    x = 383,639.67

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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.