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Finding the Fourth Proportional to 505,354.60, 758,428.05 and 352,558.03

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Solution

The fourth proportional to 505,354.60, 758,428.05 and 352,558.03 is: 529,113.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,354.60 : 758,428.05 = 352,558.03 : x
  2. Step 2: Convert to fraction form
    505,354.60/758,428.05 = 352,558.03/x
  3. Step 3: Cross multiply
    505,354.60x = 758,428.05 × 352,558.03
  4. Step 4: Simplify right side
    505,354.60x = 267,389,899,204.74
  5. Step 5: Solve for x
    x = 267,389,899,204.74/505,354.60
  6. Step 6: Final answer
    x = 529,113.42

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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.