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Finding the Fourth Proportional to 488,564.20, 732,846.30 and 320,602.60

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Solution

The fourth proportional to 488,564.20, 732,846.30 and 320,602.60 is: 480,903.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,564.20 : 732,846.30 = 320,602.60 : x
  2. Step 2: Convert to fraction form
    488,564.20/732,846.30 = 320,602.60/x
  3. Step 3: Cross multiply
    488,564.20x = 732,846.30 × 320,602.60
  4. Step 4: Simplify right side
    488,564.20x = 234,952,429,180.38
  5. Step 5: Solve for x
    x = 234,952,429,180.38/488,564.20
  6. Step 6: Final answer
    x = 480,903.90

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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.