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Finding the Fourth Proportional to 632,611.20, 948,917.70 and 258,634.20

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Solution

The fourth proportional to 632,611.20, 948,917.70 and 258,634.20 is: 387,951.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,611.20 : 948,917.70 = 258,634.20 : x
  2. Step 2: Convert to fraction form
    632,611.20/948,917.70 = 258,634.20/x
  3. Step 3: Cross multiply
    632,611.20x = 948,917.70 × 258,634.20
  4. Step 4: Simplify right side
    632,611.20x = 245,422,570,205.34
  5. Step 5: Solve for x
    x = 245,422,570,205.34/632,611.20
  6. Step 6: Final answer
    x = 387,951.67

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1.5x scale

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.