Finding the Fourth Proportional to 1,368,888.23, 1,888,494.92 and 787,972.36
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Solution
The fourth proportional to 1,368,888.23, 1,888,494.92 and 787,972.36 is: 1,087,073.26
Step by Step Solution
- Step 1: Write the proportion equation
1,368,888.23 : 1,888,494.92 = 787,972.36 : x - Step 2: Convert to fraction form
1,368,888.23/1,888,494.92 = 787,972.36/x - Step 3: Cross multiply
1,368,888.23x = 1,888,494.92 × 787,972.36 - Step 4: Simplify right side
1,368,888.23x = 1,488,081,789,517.94 - Step 5: Solve for x
x = 1,488,081,789,517.94/1,368,888.23 - Step 6: Final answer
x = 1,087,073.26
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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.