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Finding the Fourth Proportional to 656,200.52, 905,556.53 and 354,394.52

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Solution

The fourth proportional to 656,200.52, 905,556.53 and 354,394.52 is: 489,064.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,200.52 : 905,556.53 = 354,394.52 : x
  2. Step 2: Convert to fraction form
    656,200.52/905,556.53 = 354,394.52/x
  3. Step 3: Cross multiply
    656,200.52x = 905,556.53 × 354,394.52
  4. Step 4: Simplify right side
    656,200.52x = 320,924,268,878.30
  5. Step 5: Solve for x
    x = 320,924,268,878.30/656,200.52
  6. Step 6: Final answer
    x = 489,064.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.