Home / 347,288.40-520,932.60-322,405.20

Finding the Fourth Proportional to 347,288.40, 520,932.60 and 322,405.20

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Solution

The fourth proportional to 347,288.40, 520,932.60 and 322,405.20 is: 483,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,288.40 : 520,932.60 = 322,405.20 : x
  2. Step 2: Convert to fraction form
    347,288.40/520,932.60 = 322,405.20/x
  3. Step 3: Cross multiply
    347,288.40x = 520,932.60 × 322,405.20
  4. Step 4: Simplify right side
    347,288.40x = 167,951,379,089.52
  5. Step 5: Solve for x
    x = 167,951,379,089.52/347,288.40
  6. Step 6: Final answer
    x = 483,607.80

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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.