Finding the Fourth Proportional to 805,338.18, 1,111,367.39 and 442,768.23
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Solution
The fourth proportional to 805,338.18, 1,111,367.39 and 442,768.23 is: 611,020.54
Step by Step Solution
- Step 1: Write the proportion equation
805,338.18 : 1,111,367.39 = 442,768.23 : x - Step 2: Convert to fraction form
805,338.18/1,111,367.39 = 442,768.23/x - Step 3: Cross multiply
805,338.18x = 1,111,367.39 × 442,768.23 - Step 4: Simplify right side
805,338.18x = 492,078,169,936.18 - Step 5: Solve for x
x = 492,078,169,936.18/805,338.18 - Step 6: Final answer
x = 611,020.54
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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.