Finding the Fourth Proportional to 1,943,416.50, 2,681,907.84 and 1,083,976.14
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Solution
The fourth proportional to 1,943,416.50, 2,681,907.84 and 1,083,976.14 is: 1,495,883.21
Step by Step Solution
- Step 1: Write the proportion equation
1,943,416.50 : 2,681,907.84 = 1,083,976.14 : x - Step 2: Convert to fraction form
1,943,416.50/2,681,907.84 = 1,083,976.14/x - Step 3: Cross multiply
1,943,416.50x = 2,681,907.84 × 1,083,976.14 - Step 4: Simplify right side
1,943,416.50x = 2,907,124,108,238.94 - Step 5: Solve for x
x = 2,907,124,108,238.94/1,943,416.50 - Step 6: Final answer
x = 1,495,883.21
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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.