Home / 539,622.20-809,660.10-290,012.60

Finding the Fourth Proportional to 539,622.20, 809,660.10 and 290,012.60

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Solution

The fourth proportional to 539,622.20, 809,660.10 and 290,012.60 is: 435,140.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,622.20 : 809,660.10 = 290,012.60 : x
  2. Step 2: Convert to fraction form
    539,622.20/809,660.10 = 290,012.60/x
  3. Step 3: Cross multiply
    539,622.20x = 809,660.10 × 290,012.60
  4. Step 4: Simplify right side
    539,622.20x = 234,811,630,717.26
  5. Step 5: Solve for x
    x = 234,811,630,717.26/539,622.20
  6. Step 6: Final answer
    x = 435,140.79

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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.