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Finding the Fourth Proportional to 325,936.20, 488,904.30 and 286,537.80

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Solution

The fourth proportional to 325,936.20, 488,904.30 and 286,537.80 is: 429,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,936.20 : 488,904.30 = 286,537.80 : x
  2. Step 2: Convert to fraction form
    325,936.20/488,904.30 = 286,537.80/x
  3. Step 3: Cross multiply
    325,936.20x = 488,904.30 × 286,537.80
  4. Step 4: Simplify right side
    325,936.20x = 140,089,562,532.54
  5. Step 5: Solve for x
    x = 140,089,562,532.54/325,936.20
  6. Step 6: Final answer
    x = 429,806.70

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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.