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Finding the Fourth Proportional to 612,452.52, 845,189.70 and 397,673.64

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Solution

The fourth proportional to 612,452.52, 845,189.70 and 397,673.64 is: 548,793.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,452.52 : 845,189.70 = 397,673.64 : x
  2. Step 2: Convert to fraction form
    612,452.52/845,189.70 = 397,673.64/x
  3. Step 3: Cross multiply
    612,452.52x = 845,189.70 × 397,673.64
  4. Step 4: Simplify right side
    612,452.52x = 336,109,664,489.51
  5. Step 5: Solve for x
    x = 336,109,664,489.51/612,452.52
  6. Step 6: Final answer
    x = 548,793.01

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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.