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Finding the Fourth Proportional to 629,820.80, 944,846.40 and 255,881.60

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Solution

The fourth proportional to 629,820.80, 944,846.40 and 255,881.60 is: 383,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,820.80 : 944,846.40 = 255,881.60 : x
  2. Step 2: Convert to fraction form
    629,820.80/944,846.40 = 255,881.60/x
  3. Step 3: Cross multiply
    629,820.80x = 944,846.40 × 255,881.60
  4. Step 4: Simplify right side
    629,820.80x = 241,768,808,586.24
  5. Step 5: Solve for x
    x = 241,768,808,586.24/629,820.80
  6. Step 6: Final answer
    x = 383,869.20

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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.