Finding the Fourth Proportional to 1,565,783.19, 2,161,821.69 and 1,202,558.13
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Solution
The fourth proportional to 1,565,783.19, 2,161,821.69 and 1,202,558.13 is: 1,660,329.65
Step by Step Solution
- Step 1: Write the proportion equation
1,565,783.19 : 2,161,821.69 = 1,202,558.13 : x - Step 2: Convert to fraction form
1,565,783.19/2,161,821.69 = 1,202,558.13/x - Step 3: Cross multiply
1,565,783.19x = 2,161,821.69 × 1,202,558.13 - Step 4: Simplify right side
1,565,783.19x = 2,599,716,248,919.84 - Step 5: Solve for x
x = 2,599,716,248,919.84/1,565,783.19 - Step 6: Final answer
x = 1,660,329.65
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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.