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Finding the Fourth Proportional to 570,788.64, 855,519.84 and 215,576.64

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Solution

The fourth proportional to 570,788.64, 855,519.84 and 215,576.64 is: 323,114.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,788.64 : 855,519.84 = 215,576.64 : x
  2. Step 2: Convert to fraction form
    570,788.64/855,519.84 = 215,576.64/x
  3. Step 3: Cross multiply
    570,788.64x = 855,519.84 × 215,576.64
  4. Step 4: Simplify right side
    570,788.64x = 184,430,092,560.54
  5. Step 5: Solve for x
    x = 184,430,092,560.54/570,788.64
  6. Step 6: Final answer
    x = 323,114.51

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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.