Home / 856,433.36-1,284,670.92-287,822.84

Finding the Fourth Proportional to 856,433.36, 1,284,670.92 and 287,822.84

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Solution

The fourth proportional to 856,433.36, 1,284,670.92 and 287,822.84 is: 431,741.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,433.36 : 1,284,670.92 = 287,822.84 : x
  2. Step 2: Convert to fraction form
    856,433.36/1,284,670.92 = 287,822.84/x
  3. Step 3: Cross multiply
    856,433.36x = 1,284,670.92 × 287,822.84
  4. Step 4: Simplify right side
    856,433.36x = 369,757,632,659.81
  5. Step 5: Solve for x
    x = 369,757,632,659.81/856,433.36
  6. Step 6: Final answer
    x = 431,741.28

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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.