Home / 805,364.37-1,111,374.43-442,785.43

Finding the Fourth Proportional to 805,364.37, 1,111,374.43 and 442,785.43

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Solution

The fourth proportional to 805,364.37, 1,111,374.43 and 442,785.43 is: 611,028.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,364.37 : 1,111,374.43 = 442,785.43 : x
  2. Step 2: Convert to fraction form
    805,364.37/1,111,374.43 = 442,785.43/x
  3. Step 3: Cross multiply
    805,364.37x = 1,111,374.43 × 442,785.43
  4. Step 4: Simplify right side
    805,364.37x = 492,100,404,878.56
  5. Step 5: Solve for x
    x = 492,100,404,878.56/805,364.37
  6. Step 6: Final answer
    x = 611,028.28

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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.