Home / 354,311.40-531,467.10-330,810.60

Finding the Fourth Proportional to 354,311.40, 531,467.10 and 330,810.60

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Solution

The fourth proportional to 354,311.40, 531,467.10 and 330,810.60 is: 496,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,311.40 : 531,467.10 = 330,810.60 : x
  2. Step 2: Convert to fraction form
    354,311.40/531,467.10 = 330,810.60/x
  3. Step 3: Cross multiply
    354,311.40x = 531,467.10 × 330,810.60
  4. Step 4: Simplify right side
    354,311.40x = 175,814,950,231.26
  5. Step 5: Solve for x
    x = 175,814,950,231.26/354,311.40
  6. Step 6: Final answer
    x = 496,215.90

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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.