Finding the Fourth Proportional to 1,565,815.96, 2,161,866.82 and 1,202,590.68
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Solution
The fourth proportional to 1,565,815.96, 2,161,866.82 and 1,202,590.68 is: 1,660,374.50
Step by Step Solution
- Step 1: Write the proportion equation
1,565,815.96 : 2,161,866.82 = 1,202,590.68 : x - Step 2: Convert to fraction form
1,565,815.96/2,161,866.82 = 1,202,590.68/x - Step 3: Cross multiply
1,565,815.96x = 2,161,866.82 × 1,202,590.68 - Step 4: Simplify right side
1,565,815.96x = 2,599,840,889,133.24 - Step 5: Solve for x
x = 2,599,840,889,133.24/1,565,815.96 - Step 6: Final answer
x = 1,660,374.50
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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.