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Finding the Fourth Proportional to 629,745.40, 944,909.70 and 330,563.80

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Solution

The fourth proportional to 629,745.40, 944,909.70 and 330,563.80 is: 495,998.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,745.40 : 944,909.70 = 330,563.80 : x
  2. Step 2: Convert to fraction form
    629,745.40/944,909.70 = 330,563.80/x
  3. Step 3: Cross multiply
    629,745.40x = 944,909.70 × 330,563.80
  4. Step 4: Simplify right side
    629,745.40x = 312,352,941,088.86
  5. Step 5: Solve for x
    x = 312,352,941,088.86/629,745.40
  6. Step 6: Final answer
    x = 495,998.77

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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.