Home / 500,835.92-690,936.36-331,306.64

Finding the Fourth Proportional to 500,835.92, 690,936.36 and 331,306.64

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Solution

The fourth proportional to 500,835.92, 690,936.36 and 331,306.64 is: 457,059.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,835.92 : 690,936.36 = 331,306.64 : x
  2. Step 2: Convert to fraction form
    500,835.92/690,936.36 = 331,306.64/x
  3. Step 3: Cross multiply
    500,835.92x = 690,936.36 × 331,306.64
  4. Step 4: Simplify right side
    500,835.92x = 228,911,803,885.43
  5. Step 5: Solve for x
    x = 228,911,803,885.43/500,835.92
  6. Step 6: Final answer
    x = 457,059.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.