Finding the Fourth Proportional to 1,579,515.49, 2,179,544.05 and 891,147.21
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Solution
The fourth proportional to 1,579,515.49, 2,179,544.05 and 891,147.21 is: 1,229,677.46
Step by Step Solution
- Step 1: Write the proportion equation
1,579,515.49 : 2,179,544.05 = 891,147.21 : x - Step 2: Convert to fraction form
1,579,515.49/2,179,544.05 = 891,147.21/x - Step 3: Cross multiply
1,579,515.49x = 2,179,544.05 × 891,147.21 - Step 4: Simplify right side
1,579,515.49x = 1,942,294,594,773.86 - Step 5: Solve for x
x = 1,942,294,594,773.86/1,579,515.49 - Step 6: Final answer
x = 1,229,677.46
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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.