Finding the Fourth Proportional to 1,422,718.28, 1,963,231.99 and 802,489.17
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Solution
The fourth proportional to 1,422,718.28, 1,963,231.99 and 802,489.17 is: 1,107,367.80
Step by Step Solution
- Step 1: Write the proportion equation
1,422,718.28 : 1,963,231.99 = 802,489.17 : x - Step 2: Convert to fraction form
1,422,718.28/1,963,231.99 = 802,489.17/x - Step 3: Cross multiply
1,422,718.28x = 1,963,231.99 × 802,489.17 - Step 4: Simplify right side
1,422,718.28x = 1,575,472,408,166.33 - Step 5: Solve for x
x = 1,575,472,408,166.33/1,422,718.28 - Step 6: Final answer
x = 1,107,367.80
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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.