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Finding the Fourth Proportional to 571,242.60, 856,475.10 and 271,866.60

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Solution

The fourth proportional to 571,242.60, 856,475.10 and 271,866.60 is: 407,614.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,242.60 : 856,475.10 = 271,866.60 : x
  2. Step 2: Convert to fraction form
    571,242.60/856,475.10 = 271,866.60/x
  3. Step 3: Cross multiply
    571,242.60x = 856,475.10 × 271,866.60
  4. Step 4: Simplify right side
    571,242.60x = 232,846,973,421.66
  5. Step 5: Solve for x
    x = 232,846,973,421.66/571,242.60
  6. Step 6: Final answer
    x = 407,614.86

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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.