Home / 458,244.20-687,539.10-221,796.20

Finding the Fourth Proportional to 458,244.20, 687,539.10 and 221,796.20

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Solution

The fourth proportional to 458,244.20, 687,539.10 and 221,796.20 is: 332,777.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,244.20 : 687,539.10 = 221,796.20 : x
  2. Step 2: Convert to fraction form
    458,244.20/687,539.10 = 221,796.20/x
  3. Step 3: Cross multiply
    458,244.20x = 687,539.10 × 221,796.20
  4. Step 4: Simplify right side
    458,244.20x = 152,493,559,731.42
  5. Step 5: Solve for x
    x = 152,493,559,731.42/458,244.20
  6. Step 6: Final answer
    x = 332,777.94

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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.