Finding the Fourth Proportional to 1,913,020.81, 2,640,088.02 and 1,053,580.84
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Solution
The fourth proportional to 1,913,020.81, 2,640,088.02 and 1,053,580.84 is: 1,454,007.26
Step by Step Solution
- Step 1: Write the proportion equation
1,913,020.81 : 2,640,088.02 = 1,053,580.84 : x - Step 2: Convert to fraction form
1,913,020.81/2,640,088.02 = 1,053,580.84/x - Step 3: Cross multiply
1,913,020.81x = 2,640,088.02 × 1,053,580.84 - Step 4: Simplify right side
1,913,020.81x = 2,781,546,153,785.54 - Step 5: Solve for x
x = 2,781,546,153,785.54/1,913,020.81 - Step 6: Final answer
x = 1,454,007.26
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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.