Finding the Fourth Proportional to 1,509,437.11, 2,082,963.09 and 821,109.84
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Solution
The fourth proportional to 1,509,437.11, 2,082,963.09 and 821,109.84 is: 1,133,098.87
Step by Step Solution
- Step 1: Write the proportion equation
1,509,437.11 : 2,082,963.09 = 821,109.84 : x - Step 2: Convert to fraction form
1,509,437.11/2,082,963.09 = 821,109.84/x - Step 3: Cross multiply
1,509,437.11x = 2,082,963.09 × 821,109.84 - Step 4: Simplify right side
1,509,437.11x = 1,710,341,489,555.81 - Step 5: Solve for x
x = 1,710,341,489,555.81/1,509,437.11 - Step 6: Final answer
x = 1,133,098.87
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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.