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Finding the Fourth Proportional to 632,662.20, 948,996.90 and 258,685.20

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Solution

The fourth proportional to 632,662.20, 948,996.90 and 258,685.20 is: 388,029.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,662.20 : 948,996.90 = 258,685.20 : x
  2. Step 2: Convert to fraction form
    632,662.20/948,996.90 = 258,685.20/x
  3. Step 3: Cross multiply
    632,662.20x = 948,996.90 × 258,685.20
  4. Step 4: Simplify right side
    632,662.20x = 245,491,452,875.88
  5. Step 5: Solve for x
    x = 245,491,452,875.88/632,662.20
  6. Step 6: Final answer
    x = 388,029.27

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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.