Finding the Fourth Proportional to 1,927,639.86, 2,660,211.63 and 1,163,544.18
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Solution
The fourth proportional to 1,927,639.86, 2,660,211.63 and 1,163,544.18 is: 1,605,732.39
Step by Step Solution
- Step 1: Write the proportion equation
1,927,639.86 : 2,660,211.63 = 1,163,544.18 : x - Step 2: Convert to fraction form
1,927,639.86/2,660,211.63 = 1,163,544.18/x - Step 3: Cross multiply
1,927,639.86x = 2,660,211.63 × 1,163,544.18 - Step 4: Simplify right side
1,927,639.86x = 3,095,273,759,654.81 - Step 5: Solve for x
x = 3,095,273,759,654.81/1,927,639.86 - Step 6: Final answer
x = 1,605,732.39
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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.