Finding the Fourth Proportional to 2,039,951.71, 2,815,117.79 and 1,122,161.09
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Solution
The fourth proportional to 2,039,951.71, 2,815,117.79 and 1,122,161.09 is: 1,548,573.75
Step by Step Solution
- Step 1: Write the proportion equation
2,039,951.71 : 2,815,117.79 = 1,122,161.09 : x - Step 2: Convert to fraction form
2,039,951.71/2,815,117.79 = 1,122,161.09/x - Step 3: Cross multiply
2,039,951.71x = 2,815,117.79 × 1,122,161.09 - Step 4: Simplify right side
2,039,951.71x = 3,159,015,657,547.99 - Step 5: Solve for x
x = 3,159,015,657,547.99/2,039,951.71 - Step 6: Final answer
x = 1,548,573.75
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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.