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Finding the Fourth Proportional to 488,300.60, 732,450.90 and 320,885.75

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Solution

The fourth proportional to 488,300.60, 732,450.90 and 320,885.75 is: 481,328.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,300.60 : 732,450.90 = 320,885.75 : x
  2. Step 2: Convert to fraction form
    488,300.60/732,450.90 = 320,885.75/x
  3. Step 3: Cross multiply
    488,300.60x = 732,450.90 × 320,885.75
  4. Step 4: Simplify right side
    488,300.60x = 235,033,056,384.68
  5. Step 5: Solve for x
    x = 235,033,056,384.68/488,300.60
  6. Step 6: Final answer
    x = 481,328.63

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1.5x scale

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.