Finding the Fourth Proportional to 1,619,565.75, 2,430,843.09 and 821,407.80
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Solution
The fourth proportional to 1,619,565.75, 2,430,843.09 and 821,407.80 is: 1,232,869.66
Step by Step Solution
- Step 1: Write the proportion equation
1,619,565.75 : 2,430,843.09 = 821,407.80 : x - Step 2: Convert to fraction form
1,619,565.75/2,430,843.09 = 821,407.80/x - Step 3: Cross multiply
1,619,565.75x = 2,430,843.09 × 821,407.80 - Step 4: Simplify right side
1,619,565.75x = 1,996,713,474,702.10 - Step 5: Solve for x
x = 1,996,713,474,702.10/1,619,565.75 - Step 6: Final answer
x = 1,232,869.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.