Home / 646,427.39-892,069.23-356,040.92

Finding the Fourth Proportional to 646,427.39, 892,069.23 and 356,040.92

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Solution

The fourth proportional to 646,427.39, 892,069.23 and 356,040.92 is: 491,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,427.39 : 892,069.23 = 356,040.92 : x
  2. Step 2: Convert to fraction form
    646,427.39/892,069.23 = 356,040.92/x
  3. Step 3: Cross multiply
    646,427.39x = 892,069.23 × 356,040.92
  4. Step 4: Simplify right side
    646,427.39x = 317,613,144,896.23
  5. Step 5: Solve for x
    x = 317,613,144,896.23/646,427.39
  6. Step 6: Final answer
    x = 491,336.15

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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.