Finding the Fourth Proportional to 1,565,631.20, 2,160,369.33 and 920,816.12
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Solution
The fourth proportional to 1,565,631.20, 2,160,369.33 and 920,816.12 is: 1,270,607.60
Step by Step Solution
- Step 1: Write the proportion equation
1,565,631.20 : 2,160,369.33 = 920,816.12 : x - Step 2: Convert to fraction form
1,565,631.20/2,160,369.33 = 920,816.12/x - Step 3: Cross multiply
1,565,631.20x = 2,160,369.33 × 920,816.12 - Step 4: Simplify right side
1,565,631.20x = 1,989,302,893,415.75 - Step 5: Solve for x
x = 1,989,302,893,415.75/1,565,631.20 - Step 6: Final answer
x = 1,270,607.60
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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.