Home / 857,022.46-1,284,426.44-407,880.96

Finding the Fourth Proportional to 857,022.46, 1,284,426.44 and 407,880.96

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Solution

The fourth proportional to 857,022.46, 1,284,426.44 and 407,880.96 is: 611,294.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,022.46 : 1,284,426.44 = 407,880.96 : x
  2. Step 2: Convert to fraction form
    857,022.46/1,284,426.44 = 407,880.96/x
  3. Step 3: Cross multiply
    857,022.46x = 1,284,426.44 × 407,880.96
  4. Step 4: Simplify right side
    857,022.46x = 523,893,089,396.58
  5. Step 5: Solve for x
    x = 523,893,089,396.58/857,022.46
  6. Step 6: Final answer
    x = 611,294.47

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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.