Home / 482,956.40-723,052.20-427,660.40

Finding the Fourth Proportional to 482,956.40, 723,052.20 and 427,660.40

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Solution

The fourth proportional to 482,956.40, 723,052.20 and 427,660.40 is: 640,266.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,956.40 : 723,052.20 = 427,660.40 : x
  2. Step 2: Convert to fraction form
    482,956.40/723,052.20 = 427,660.40/x
  3. Step 3: Cross multiply
    482,956.40x = 723,052.20 × 427,660.40
  4. Step 4: Simplify right side
    482,956.40x = 309,220,793,072.88
  5. Step 5: Solve for x
    x = 309,220,793,072.88/482,956.40
  6. Step 6: Final answer
    x = 640,266.48

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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.