Home / 491,664.20-736,977.90-280,848.20

Finding the Fourth Proportional to 491,664.20, 736,977.90 and 280,848.20

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Solution

The fourth proportional to 491,664.20, 736,977.90 and 280,848.20 is: 420,976.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,664.20 : 736,977.90 = 280,848.20 : x
  2. Step 2: Convert to fraction form
    491,664.20/736,977.90 = 280,848.20/x
  3. Step 3: Cross multiply
    491,664.20x = 736,977.90 × 280,848.20
  4. Step 4: Simplify right side
    491,664.20x = 206,978,916,654.78
  5. Step 5: Solve for x
    x = 206,978,916,654.78/491,664.20
  6. Step 6: Final answer
    x = 420,976.18

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1.5x scale

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.