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Finding the Fourth Proportional to 631,932.58, 872,067.54 and 345,452.86

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Solution

The fourth proportional to 631,932.58, 872,067.54 and 345,452.86 is: 476,725.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,932.58 : 872,067.54 = 345,452.86 : x
  2. Step 2: Convert to fraction form
    631,932.58/872,067.54 = 345,452.86/x
  3. Step 3: Cross multiply
    631,932.58x = 872,067.54 × 345,452.86
  4. Step 4: Simplify right side
    631,932.58x = 301,258,225,806.16
  5. Step 5: Solve for x
    x = 301,258,225,806.16/631,932.58
  6. Step 6: Final answer
    x = 476,725.26

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1.5x scale

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.