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Finding the Fourth Proportional to 618,202.20, 926,784.90 and 322,714.20

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Solution

The fourth proportional to 618,202.20, 926,784.90 and 322,714.20 is: 483,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,202.20 : 926,784.90 = 322,714.20 : x
  2. Step 2: Convert to fraction form
    618,202.20/926,784.90 = 322,714.20/x
  3. Step 3: Cross multiply
    618,202.20x = 926,784.90 × 322,714.20
  4. Step 4: Simplify right side
    618,202.20x = 299,086,647,575.58
  5. Step 5: Solve for x
    x = 299,086,647,575.58/618,202.20
  6. Step 6: Final answer
    x = 483,800.68

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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.