Finding the Fourth Proportional to 1,565,921.44, 2,160,934.83 and 921,383.38
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Solution
The fourth proportional to 1,565,921.44, 2,160,934.83 and 921,383.38 is: 1,271,487.44
Step by Step Solution
- Step 1: Write the proportion equation
1,565,921.44 : 2,160,934.83 = 921,383.38 : x - Step 2: Convert to fraction form
1,565,921.44/2,160,934.83 = 921,383.38/x - Step 3: Cross multiply
1,565,921.44x = 2,160,934.83 × 921,383.38 - Step 4: Simplify right side
1,565,921.44x = 1,991,049,437,625.13 - Step 5: Solve for x
x = 1,991,049,437,625.13/1,565,921.44 - Step 6: Final answer
x = 1,271,487.44
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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.