Home / 825,863.88-1,139,744.52-463,311.23

Finding the Fourth Proportional to 825,863.88, 1,139,744.52 and 463,311.23

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Solution

The fourth proportional to 825,863.88, 1,139,744.52 and 463,311.23 is: 639,398.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,863.88 : 1,139,744.52 = 463,311.23 : x
  2. Step 2: Convert to fraction form
    825,863.88/1,139,744.52 = 463,311.23/x
  3. Step 3: Cross multiply
    825,863.88x = 1,139,744.52 × 463,311.23
  4. Step 4: Simplify right side
    825,863.88x = 528,056,429,748.24
  5. Step 5: Solve for x
    x = 528,056,429,748.24/825,863.88
  6. Step 6: Final answer
    x = 639,398.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.