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Finding the Fourth Proportional to 570,778.20, 856,175.70 and 271,289.34

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Solution

The fourth proportional to 570,778.20, 856,175.70 and 271,289.34 is: 406,938.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,778.20 : 856,175.70 = 271,289.34 : x
  2. Step 2: Convert to fraction form
    570,778.20/856,175.70 = 271,289.34/x
  3. Step 3: Cross multiply
    570,778.20x = 856,175.70 × 271,289.34
  4. Step 4: Simplify right side
    570,778.20x = 232,271,340,577.04
  5. Step 5: Solve for x
    x = 232,271,340,577.04/570,778.20
  6. Step 6: Final answer
    x = 406,938.00

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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.