Home / 648,052.20-971,948.70-311,092.20

Finding the Fourth Proportional to 648,052.20, 971,948.70 and 311,092.20

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Solution

The fourth proportional to 648,052.20, 971,948.70 and 311,092.20 is: 466,576.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,052.20 : 971,948.70 = 311,092.20 : x
  2. Step 2: Convert to fraction form
    648,052.20/971,948.70 = 311,092.20/x
  3. Step 3: Cross multiply
    648,052.20x = 971,948.70 × 311,092.20
  4. Step 4: Simplify right side
    648,052.20x = 302,365,659,370.14
  5. Step 5: Solve for x
    x = 302,365,659,370.14/648,052.20
  6. Step 6: Final answer
    x = 466,576.09

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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.