Finding the Fourth Proportional to 986,989.98, 1,361,964.15 and 579,049.14
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Solution
The fourth proportional to 986,989.98, 1,361,964.15 and 579,049.14 is: 799,039.69
Step by Step Solution
- Step 1: Write the proportion equation
986,989.98 : 1,361,964.15 = 579,049.14 : x - Step 2: Convert to fraction form
986,989.98/1,361,964.15 = 579,049.14/x - Step 3: Cross multiply
986,989.98x = 1,361,964.15 × 579,049.14 - Step 4: Simplify right side
986,989.98x = 788,644,169,768.33 - Step 5: Solve for x
x = 788,644,169,768.33/986,989.98 - Step 6: Final answer
x = 799,039.69
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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.