Home / 646,409.22-892,036.40-356,015.25

Finding the Fourth Proportional to 646,409.22, 892,036.40 and 356,015.25

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Solution

The fourth proportional to 646,409.22, 892,036.40 and 356,015.25 is: 491,296.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,409.22 : 892,036.40 = 356,015.25 : x
  2. Step 2: Convert to fraction form
    646,409.22/892,036.40 = 356,015.25/x
  3. Step 3: Cross multiply
    646,409.22x = 892,036.40 × 356,015.25
  4. Step 4: Simplify right side
    646,409.22x = 317,578,560,175.02
  5. Step 5: Solve for x
    x = 317,578,560,175.02/646,409.22
  6. Step 6: Final answer
    x = 491,296.46

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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.