Finding the Fourth Proportional to 1,913,415.16, 2,640,513.07 and 1,053,975.42
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Solution
The fourth proportional to 1,913,415.16, 2,640,513.07 and 1,053,975.42 is: 1,454,486.16
Step by Step Solution
- Step 1: Write the proportion equation
1,913,415.16 : 2,640,513.07 = 1,053,975.42 : x - Step 2: Convert to fraction form
1,913,415.16/2,640,513.07 = 1,053,975.42/x - Step 3: Cross multiply
1,913,415.16x = 2,640,513.07 × 1,053,975.42 - Step 4: Simplify right side
1,913,415.16x = 2,783,035,869,333.80 - Step 5: Solve for x
x = 2,783,035,869,333.80/1,913,415.16 - Step 6: Final answer
x = 1,454,486.16
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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.