Home / 856,464.60-1,284,717.42-287,853.96

Finding the Fourth Proportional to 856,464.60, 1,284,717.42 and 287,853.96

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Solution

The fourth proportional to 856,464.60, 1,284,717.42 and 287,853.96 is: 431,787.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,464.60 : 1,284,717.42 = 287,853.96 : x
  2. Step 2: Convert to fraction form
    856,464.60/1,284,717.42 = 287,853.96/x
  3. Step 3: Cross multiply
    856,464.60x = 1,284,717.42 × 287,853.96
  4. Step 4: Simplify right side
    856,464.60x = 369,810,996,827.98
  5. Step 5: Solve for x
    x = 369,810,996,827.98/856,464.60
  6. Step 6: Final answer
    x = 431,787.84

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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.