Finding the Fourth Proportional to 1,219,382.42, 1,683,027.63 and 811,501.44
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Solution
The fourth proportional to 1,219,382.42, 1,683,027.63 and 811,501.44 is: 1,120,058.26
Step by Step Solution
- Step 1: Write the proportion equation
1,219,382.42 : 1,683,027.63 = 811,501.44 : x - Step 2: Convert to fraction form
1,219,382.42/1,683,027.63 = 811,501.44/x - Step 3: Cross multiply
1,219,382.42x = 1,683,027.63 × 811,501.44 - Step 4: Simplify right side
1,219,382.42x = 1,365,779,345,304.79 - Step 5: Solve for x
x = 1,365,779,345,304.79/1,219,382.42 - Step 6: Final answer
x = 1,120,058.26
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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.