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Finding the Fourth Proportional to 886,796.64, 1,330,223.31 and 347,031.54

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Solution

The fourth proportional to 886,796.64, 1,330,223.31 and 347,031.54 is: 520,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,796.64 : 1,330,223.31 = 347,031.54 : x
  2. Step 2: Convert to fraction form
    886,796.64/1,330,223.31 = 347,031.54/x
  3. Step 3: Cross multiply
    886,796.64x = 1,330,223.31 × 347,031.54
  4. Step 4: Simplify right side
    886,796.64x = 461,629,443,813.20
  5. Step 5: Solve for x
    x = 461,629,443,813.20/886,796.64
  6. Step 6: Final answer
    x = 520,558.40

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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.