Home / 856,305.33-1,284,606.45-287,741.94

Finding the Fourth Proportional to 856,305.33, 1,284,606.45 and 287,741.94

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Solution

The fourth proportional to 856,305.33, 1,284,606.45 and 287,741.94 is: 431,662.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,305.33 : 1,284,606.45 = 287,741.94 : x
  2. Step 2: Convert to fraction form
    856,305.33/1,284,606.45 = 287,741.94/x
  3. Step 3: Cross multiply
    856,305.33x = 1,284,606.45 × 287,741.94
  4. Step 4: Simplify right side
    856,305.33x = 369,635,152,059.51
  5. Step 5: Solve for x
    x = 369,635,152,059.51/856,305.33
  6. Step 6: Final answer
    x = 431,662.79

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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.