Home / 856,969.20-1,285,539.05-317,369.88

Finding the Fourth Proportional to 856,969.20, 1,285,539.05 and 317,369.88

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Solution

The fourth proportional to 856,969.20, 1,285,539.05 and 317,369.88 is: 476,086.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,969.20 : 1,285,539.05 = 317,369.88 : x
  2. Step 2: Convert to fraction form
    856,969.20/1,285,539.05 = 317,369.88/x
  3. Step 3: Cross multiply
    856,969.20x = 1,285,539.05 × 317,369.88
  4. Step 4: Simplify right side
    856,969.20x = 407,991,374,827.24
  5. Step 5: Solve for x
    x = 407,991,374,827.24/856,969.20
  6. Step 6: Final answer
    x = 476,086.39

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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.