Home / 825,827.85-1,139,640.57-458,361.28

Finding the Fourth Proportional to 825,827.85, 1,139,640.57 and 458,361.28

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Solution

The fourth proportional to 825,827.85, 1,139,640.57 and 458,361.28 is: 632,537.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,827.85 : 1,139,640.57 = 458,361.28 : x
  2. Step 2: Convert to fraction form
    825,827.85/1,139,640.57 = 458,361.28/x
  3. Step 3: Cross multiply
    825,827.85x = 1,139,640.57 × 458,361.28
  4. Step 4: Simplify right side
    825,827.85x = 522,367,110,405.13
  5. Step 5: Solve for x
    x = 522,367,110,405.13/825,827.85
  6. Step 6: Final answer
    x = 632,537.53

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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.