Finding the Fourth Proportional to 1,368,812.23, 1,888,390.33 and 787,896.35
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Solution
The fourth proportional to 1,368,812.23, 1,888,390.33 and 787,896.35 is: 1,086,968.55
Step by Step Solution
- Step 1: Write the proportion equation
1,368,812.23 : 1,888,390.33 = 787,896.35 : x - Step 2: Convert to fraction form
1,368,812.23/1,888,390.33 = 787,896.35/x - Step 3: Cross multiply
1,368,812.23x = 1,888,390.33 × 787,896.35 - Step 4: Simplify right side
1,368,812.23x = 1,487,855,844,052.07 - Step 5: Solve for x
x = 1,487,855,844,052.07/1,368,812.23 - Step 6: Final answer
x = 1,086,968.55
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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.