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Finding the Fourth Proportional to 488,451.30, 732,786.30 and 188,905.20

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Solution

The fourth proportional to 488,451.30, 732,786.30 and 188,905.20 is: 283,400.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,451.30 : 732,786.30 = 188,905.20 : x
  2. Step 2: Convert to fraction form
    488,451.30/732,786.30 = 188,905.20/x
  3. Step 3: Cross multiply
    488,451.30x = 732,786.30 × 188,905.20
  4. Step 4: Simplify right side
    488,451.30x = 138,427,142,558.76
  5. Step 5: Solve for x
    x = 138,427,142,558.76/488,451.30
  6. Step 6: Final answer
    x = 283,400.09

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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.