Finding the Fourth Proportional to 1,219,305.05, 1,682,641.04 and 675,476.09
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Solution
The fourth proportional to 1,219,305.05, 1,682,641.04 and 675,476.09 is: 932,157.04
Step by Step Solution
- Step 1: Write the proportion equation
1,219,305.05 : 1,682,641.04 = 675,476.09 : x - Step 2: Convert to fraction form
1,219,305.05/1,682,641.04 = 675,476.09/x - Step 3: Cross multiply
1,219,305.05x = 1,682,641.04 × 675,476.09 - Step 4: Simplify right side
1,219,305.05x = 1,136,583,778,782.15 - Step 5: Solve for x
x = 1,136,583,778,782.15/1,219,305.05 - Step 6: Final answer
x = 932,157.04
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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.