Finding the Fourth Proportional to 1,389,927.74, 2,086,239.80 and 670,775.54
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Solution
The fourth proportional to 1,389,927.74, 2,086,239.80 and 670,775.54 is: 1,006,813.94
Step by Step Solution
- Step 1: Write the proportion equation
1,389,927.74 : 2,086,239.80 = 670,775.54 : x - Step 2: Convert to fraction form
1,389,927.74/2,086,239.80 = 670,775.54/x - Step 3: Cross multiply
1,389,927.74x = 2,086,239.80 × 670,775.54 - Step 4: Simplify right side
1,389,927.74x = 1,399,398,628,414.49 - Step 5: Solve for x
x = 1,399,398,628,414.49/1,389,927.74 - Step 6: Final answer
x = 1,006,813.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.