Finding the Fourth Proportional to 1,368,138.57, 1,887,941.25 and 787,267.94
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Solution
The fourth proportional to 1,368,138.57, 1,887,941.25 and 787,267.94 is: 1,086,377.98
Step by Step Solution
- Step 1: Write the proportion equation
1,368,138.57 : 1,887,941.25 = 787,267.94 : x - Step 2: Convert to fraction form
1,368,138.57/1,887,941.25 = 787,267.94/x - Step 3: Cross multiply
1,368,138.57x = 1,887,941.25 × 787,267.94 - Step 4: Simplify right side
1,368,138.57x = 1,486,315,618,728.53 - Step 5: Solve for x
x = 1,486,315,618,728.53/1,368,138.57 - Step 6: Final answer
x = 1,086,377.98
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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.