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Finding the Fourth Proportional to 512,460.33, 768,611.64 and 170,909.76

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Solution

The fourth proportional to 512,460.33, 768,611.64 and 170,909.76 is: 256,338.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,460.33 : 768,611.64 = 170,909.76 : x
  2. Step 2: Convert to fraction form
    512,460.33/768,611.64 = 170,909.76/x
  3. Step 3: Cross multiply
    512,460.33x = 768,611.64 × 170,909.76
  4. Step 4: Simplify right side
    512,460.33x = 131,363,230,925.61
  5. Step 5: Solve for x
    x = 131,363,230,925.61/512,460.33
  6. Step 6: Final answer
    x = 256,338.34

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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.