Finding the Fourth Proportional to 1,210,206.54, 1,666,482.84 and 1,183,353.96
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Solution
The fourth proportional to 1,210,206.54, 1,666,482.84 and 1,183,353.96 is: 1,629,506.21
Step by Step Solution
- Step 1: Write the proportion equation
1,210,206.54 : 1,666,482.84 = 1,183,353.96 : x - Step 2: Convert to fraction form
1,210,206.54/1,666,482.84 = 1,183,353.96/x - Step 3: Cross multiply
1,210,206.54x = 1,666,482.84 × 1,183,353.96 - Step 4: Simplify right side
1,210,206.54x = 1,972,039,067,986.05 - Step 5: Solve for x
x = 1,972,039,067,986.05/1,210,206.54 - Step 6: Final answer
x = 1,629,506.21
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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.