Finding the Fourth Proportional to 1,565,919.69, 2,160,932.41 and 921,381.63
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Solution
The fourth proportional to 1,565,919.69, 2,160,932.41 and 921,381.63 is: 1,271,485.02
Step by Step Solution
- Step 1: Write the proportion equation
1,565,919.69 : 2,160,932.41 = 921,381.63 : x - Step 2: Convert to fraction form
1,565,919.69/2,160,932.41 = 921,381.63/x - Step 3: Cross multiply
1,565,919.69x = 2,160,932.41 × 921,381.63 - Step 4: Simplify right side
1,565,919.69x = 1,991,043,426,245.63 - Step 5: Solve for x
x = 1,991,043,426,245.63/1,565,919.69 - Step 6: Final answer
x = 1,271,485.02
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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.