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Finding the Fourth Proportional to 538,811.20, 808,216.80 and 352,033.60

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Solution

The fourth proportional to 538,811.20, 808,216.80 and 352,033.60 is: 528,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,811.20 : 808,216.80 = 352,033.60 : x
  2. Step 2: Convert to fraction form
    538,811.20/808,216.80 = 352,033.60/x
  3. Step 3: Cross multiply
    538,811.20x = 808,216.80 × 352,033.60
  4. Step 4: Simplify right side
    538,811.20x = 284,519,469,684.48
  5. Step 5: Solve for x
    x = 284,519,469,684.48/538,811.20
  6. Step 6: Final answer
    x = 528,050.40

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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.