Home / 488,037.30-731,946.60-320,731.80

Finding the Fourth Proportional to 488,037.30, 731,946.60 and 320,731.80

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Solution

The fourth proportional to 488,037.30, 731,946.60 and 320,731.80 is: 481,025.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,037.30 : 731,946.60 = 320,731.80 : x
  2. Step 2: Convert to fraction form
    488,037.30/731,946.60 = 320,731.80/x
  3. Step 3: Cross multiply
    488,037.30x = 731,946.60 × 320,731.80
  4. Step 4: Simplify right side
    488,037.30x = 234,758,550,521.88
  5. Step 5: Solve for x
    x = 234,758,550,521.88/488,037.30
  6. Step 6: Final answer
    x = 481,025.84

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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.