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Finding the Fourth Proportional to 768,296, 1,060,258.08 and 446,019.68

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Solution

The fourth proportional to 768,296, 1,060,258.08 and 446,019.68 is: 615,512.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,296 : 1,060,258.08 = 446,019.68 : x
  2. Step 2: Convert to fraction form
    768,296/1,060,258.08 = 446,019.68/x
  3. Step 3: Cross multiply
    768,296x = 1,060,258.08 × 446,019.68
  4. Step 4: Simplify right side
    768,296x = 472,895,969,559.01
  5. Step 5: Solve for x
    x = 472,895,969,559.01/768,296
  6. Step 6: Final answer
    x = 615,512.73

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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.