Finding the Fourth Proportional to 2,117,352.96, 2,921,618.16 and 1,257,891.12
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Solution
The fourth proportional to 2,117,352.96, 2,921,618.16 and 1,257,891.12 is: 1,735,694.34
Step by Step Solution
- Step 1: Write the proportion equation
2,117,352.96 : 2,921,618.16 = 1,257,891.12 : x - Step 2: Convert to fraction form
2,117,352.96/2,921,618.16 = 1,257,891.12/x - Step 3: Cross multiply
2,117,352.96x = 2,921,618.16 × 1,257,891.12 - Step 4: Simplify right side
2,117,352.96x = 3,675,077,539,494.74 - Step 5: Solve for x
x = 3,675,077,539,494.74/2,117,352.96 - Step 6: Final answer
x = 1,735,694.34
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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.