Finding the Fourth Proportional to 1,591,315.66, 2,196,062.99 and 979,821.28
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Solution
The fourth proportional to 1,591,315.66, 2,196,062.99 and 979,821.28 is: 1,352,182.54
Step by Step Solution
- Step 1: Write the proportion equation
1,591,315.66 : 2,196,062.99 = 979,821.28 : x - Step 2: Convert to fraction form
1,591,315.66/2,196,062.99 = 979,821.28/x - Step 3: Cross multiply
1,591,315.66x = 2,196,062.99 × 979,821.28 - Step 4: Simplify right side
1,591,315.66x = 2,151,749,249,822.43 - Step 5: Solve for x
x = 2,151,749,249,822.43/1,591,315.66 - Step 6: Final answer
x = 1,352,182.54
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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.