Finding the Fourth Proportional to 805,414.85, 1,111,476.68 and 442,862.07
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Solution
The fourth proportional to 805,414.85, 1,111,476.68 and 442,862.07 is: 611,151.95
Step by Step Solution
- Step 1: Write the proportion equation
805,414.85 : 1,111,476.68 = 442,862.07 : x - Step 2: Convert to fraction form
805,414.85/1,111,476.68 = 442,862.07/x - Step 3: Cross multiply
805,414.85x = 1,111,476.68 × 442,862.07 - Step 4: Simplify right side
805,414.85x = 492,230,858,539.91 - Step 5: Solve for x
x = 492,230,858,539.91/805,414.85 - Step 6: Final answer
x = 611,151.95
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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.