Finding the Fourth Proportional to 1,712,284.11, 2,362,946.18 and 987,128.37
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Solution
The fourth proportional to 1,712,284.11, 2,362,946.18 and 987,128.37 is: 1,362,233.75
Step by Step Solution
- Step 1: Write the proportion equation
1,712,284.11 : 2,362,946.18 = 987,128.37 : x - Step 2: Convert to fraction form
1,712,284.11/2,362,946.18 = 987,128.37/x - Step 3: Cross multiply
1,712,284.11x = 2,362,946.18 × 987,128.37 - Step 4: Simplify right side
1,712,284.11x = 2,332,531,206,125.48 - Step 5: Solve for x
x = 2,332,531,206,125.48/1,712,284.11 - Step 6: Final answer
x = 1,362,233.75
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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.