Finding the Fourth Proportional to 2,405,581.08, 3,319,701.62 and 1,438,711.22
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Solution
The fourth proportional to 2,405,581.08, 3,319,701.62 and 1,438,711.22 is: 1,985,421.31
Step by Step Solution
- Step 1: Write the proportion equation
2,405,581.08 : 3,319,701.62 = 1,438,711.22 : x - Step 2: Convert to fraction form
2,405,581.08/3,319,701.62 = 1,438,711.22/x - Step 3: Cross multiply
2,405,581.08x = 3,319,701.62 × 1,438,711.22 - Step 4: Simplify right side
2,405,581.08x = 4,776,091,943,954.11 - Step 5: Solve for x
x = 4,776,091,943,954.11/2,405,581.08 - Step 6: Final answer
x = 1,985,421.31
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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.