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Finding the Fourth Proportional to 488,299.60, 732,449.40 and 320,884.75

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Solution

The fourth proportional to 488,299.60, 732,449.40 and 320,884.75 is: 481,327.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,299.60 : 732,449.40 = 320,884.75 : x
  2. Step 2: Convert to fraction form
    488,299.60/732,449.40 = 320,884.75/x
  3. Step 3: Cross multiply
    488,299.60x = 732,449.40 × 320,884.75
  4. Step 4: Simplify right side
    488,299.60x = 235,031,842,606.65
  5. Step 5: Solve for x
    x = 235,031,842,606.65/488,299.60
  6. Step 6: Final answer
    x = 481,327.13

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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.