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Finding the Fourth Proportional to 392,053.60, 587,205.60 and 302,605.30

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Solution

The fourth proportional to 392,053.60, 587,205.60 and 302,605.30 is: 453,232.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,053.60 : 587,205.60 = 302,605.30 : x
  2. Step 2: Convert to fraction form
    392,053.60/587,205.60 = 302,605.30/x
  3. Step 3: Cross multiply
    392,053.60x = 587,205.60 × 302,605.30
  4. Step 4: Simplify right side
    392,053.60x = 177,691,526,749.68
  5. Step 5: Solve for x
    x = 177,691,526,749.68/392,053.60
  6. Step 6: Final answer
    x = 453,232.74

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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.