Home / 488,035.80-731,944.35-320,730.30

Finding the Fourth Proportional to 488,035.80, 731,944.35 and 320,730.30

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Solution

The fourth proportional to 488,035.80, 731,944.35 and 320,730.30 is: 481,023.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,035.80 : 731,944.35 = 320,730.30 : x
  2. Step 2: Convert to fraction form
    488,035.80/731,944.35 = 320,730.30/x
  3. Step 3: Cross multiply
    488,035.80x = 731,944.35 × 320,730.30
  4. Step 4: Simplify right side
    488,035.80x = 234,756,730,958.81
  5. Step 5: Solve for x
    x = 234,756,730,958.81/488,035.80
  6. Step 6: Final answer
    x = 481,023.59

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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.