Finding the Fourth Proportional to 1,968,399.12, 2,716,390.80 and 1,062,981.12
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Solution
The fourth proportional to 1,968,399.12, 2,716,390.80 and 1,062,981.12 is: 1,466,913.95
Step by Step Solution
- Step 1: Write the proportion equation
1,968,399.12 : 2,716,390.80 = 1,062,981.12 : x - Step 2: Convert to fraction form
1,968,399.12/2,716,390.80 = 1,062,981.12/x - Step 3: Cross multiply
1,968,399.12x = 2,716,390.80 × 1,062,981.12 - Step 4: Simplify right side
1,968,399.12x = 2,887,472,134,941.70 - Step 5: Solve for x
x = 2,887,472,134,941.70/1,968,399.12 - Step 6: Final answer
x = 1,466,913.95
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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.