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Finding the Fourth Proportional to 632,181.28, 872,409.79 and 345,701.37

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Solution

The fourth proportional to 632,181.28, 872,409.79 and 345,701.37 is: 477,067.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,181.28 : 872,409.79 = 345,701.37 : x
  2. Step 2: Convert to fraction form
    632,181.28/872,409.79 = 345,701.37/x
  3. Step 3: Cross multiply
    632,181.28x = 872,409.79 × 345,701.37
  4. Step 4: Simplify right side
    632,181.28x = 301,593,258,400.77
  5. Step 5: Solve for x
    x = 301,593,258,400.77/632,181.28
  6. Step 6: Final answer
    x = 477,067.68

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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.