Home / 859,777.46-1,289,678.58-327,327.70

Finding the Fourth Proportional to 859,777.46, 1,289,678.58 and 327,327.70

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Solution

The fourth proportional to 859,777.46, 1,289,678.58 and 327,327.70 is: 490,996.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,777.46 : 1,289,678.58 = 327,327.70 : x
  2. Step 2: Convert to fraction form
    859,777.46/1,289,678.58 = 327,327.70/x
  3. Step 3: Cross multiply
    859,777.46x = 1,289,678.58 × 327,327.70
  4. Step 4: Simplify right side
    859,777.46x = 422,147,523,330.67
  5. Step 5: Solve for x
    x = 422,147,523,330.67/859,777.46
  6. Step 6: Final answer
    x = 490,996.27

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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.