Finding the Fourth Proportional to 1,071,290.21, 1,478,376.41 and 587,863.44
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Solution
The fourth proportional to 1,071,290.21, 1,478,376.41 and 587,863.44 is: 811,249.31
Step by Step Solution
- Step 1: Write the proportion equation
1,071,290.21 : 1,478,376.41 = 587,863.44 : x - Step 2: Convert to fraction form
1,071,290.21/1,478,376.41 = 587,863.44/x - Step 3: Cross multiply
1,071,290.21x = 1,478,376.41 × 587,863.44 - Step 4: Simplify right side
1,071,290.21x = 869,083,439,058.13 - Step 5: Solve for x
x = 869,083,439,058.13/1,071,290.21 - Step 6: Final answer
x = 811,249.31
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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.