Finding the Fourth Proportional to 778,889.70, 1,093,394.70 and 778,889.70
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Solution
The fourth proportional to 778,889.70, 1,093,394.70 and 778,889.70 is: 1,093,394.70
Step by Step Solution
- Step 1: Write the proportion equation
778,889.70 : 1,093,394.70 = 778,889.70 : x - Step 2: Convert to fraction form
778,889.70/1,093,394.70 = 778,889.70/x - Step 3: Cross multiply
778,889.70x = 1,093,394.70 × 778,889.70 - Step 4: Simplify right side
778,889.70x = 851,633,869,864.59 - Step 5: Solve for x
x = 851,633,869,864.59/778,889.70 - Step 6: Final answer
x = 1,093,394.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.