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Finding the Fourth Proportional to 629,741.40, 944,903.70 and 330,559.80

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Solution

The fourth proportional to 629,741.40, 944,903.70 and 330,559.80 is: 495,992.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,741.40 : 944,903.70 = 330,559.80 : x
  2. Step 2: Convert to fraction form
    629,741.40/944,903.70 = 330,559.80/x
  3. Step 3: Cross multiply
    629,741.40x = 944,903.70 × 330,559.80
  4. Step 4: Simplify right side
    629,741.40x = 312,347,178,091.26
  5. Step 5: Solve for x
    x = 312,347,178,091.26/629,741.40
  6. Step 6: Final answer
    x = 495,992.76

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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.