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Finding the Fourth Proportional to 488,629.40, 732,360.90 and 204,319.40

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Solution

The fourth proportional to 488,629.40, 732,360.90 and 204,319.40 is: 306,235.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,629.40 : 732,360.90 = 204,319.40 : x
  2. Step 2: Convert to fraction form
    488,629.40/732,360.90 = 204,319.40/x
  3. Step 3: Cross multiply
    488,629.40x = 732,360.90 × 204,319.40
  4. Step 4: Simplify right side
    488,629.40x = 149,635,539,671.46
  5. Step 5: Solve for x
    x = 149,635,539,671.46/488,629.40
  6. Step 6: Final answer
    x = 306,235.24

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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.