Finding the Fourth Proportional to 1,638,896.80, 2,260,873.68 and 1,095,166.12
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Solution
The fourth proportional to 1,638,896.80, 2,260,873.68 and 1,095,166.12 is: 1,510,792.05
Step by Step Solution
- Step 1: Write the proportion equation
1,638,896.80 : 2,260,873.68 = 1,095,166.12 : x - Step 2: Convert to fraction form
1,638,896.80/2,260,873.68 = 1,095,166.12/x - Step 3: Cross multiply
1,638,896.80x = 2,260,873.68 × 1,095,166.12 - Step 4: Simplify right side
1,638,896.80x = 2,476,032,255,935.72 - Step 5: Solve for x
x = 2,476,032,255,935.72/1,638,896.80 - Step 6: Final answer
x = 1,510,792.05
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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.