Finding the Fourth Proportional to 1,912,656.75, 2,639,466.32 and 1,053,214.96
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Solution
The fourth proportional to 1,912,656.75, 2,639,466.32 and 1,053,214.96 is: 1,453,436.64
Step by Step Solution
- Step 1: Write the proportion equation
1,912,656.75 : 2,639,466.32 = 1,053,214.96 : x - Step 2: Convert to fraction form
1,912,656.75/2,639,466.32 = 1,053,214.96/x - Step 3: Cross multiply
1,912,656.75x = 2,639,466.32 × 1,053,214.96 - Step 4: Simplify right side
1,912,656.75x = 2,779,925,402,775.41 - Step 5: Solve for x
x = 2,779,925,402,775.41/1,912,656.75 - Step 6: Final answer
x = 1,453,436.64
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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.