Home / 405,622.20-608,433.30-272,911.80

Finding the Fourth Proportional to 405,622.20, 608,433.30 and 272,911.80

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Solution

The fourth proportional to 405,622.20, 608,433.30 and 272,911.80 is: 409,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,622.20 : 608,433.30 = 272,911.80 : x
  2. Step 2: Convert to fraction form
    405,622.20/608,433.30 = 272,911.80/x
  3. Step 3: Cross multiply
    405,622.20x = 608,433.30 × 272,911.80
  4. Step 4: Simplify right side
    405,622.20x = 166,048,627,082.94
  5. Step 5: Solve for x
    x = 166,048,627,082.94/405,622.20
  6. Step 6: Final answer
    x = 409,367.70

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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.