Finding the Fourth Proportional to 1,509,184.64, 2,082,631.36 and 830,121.12
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Solution
The fourth proportional to 1,509,184.64, 2,082,631.36 and 830,121.12 is: 1,145,543.25
Step by Step Solution
- Step 1: Write the proportion equation
1,509,184.64 : 2,082,631.36 = 830,121.12 : x - Step 2: Convert to fraction form
1,509,184.64/2,082,631.36 = 830,121.12/x - Step 3: Cross multiply
1,509,184.64x = 2,082,631.36 × 830,121.12 - Step 4: Simplify right side
1,509,184.64x = 1,728,836,277,110.32 - Step 5: Solve for x
x = 1,728,836,277,110.32/1,509,184.64 - Step 6: Final answer
x = 1,145,543.25
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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.