Finding the Fourth Proportional to 2,156,745.68, 2,976,205.16 and 1,176,626.36
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Solution
The fourth proportional to 2,156,745.68, 2,976,205.16 and 1,176,626.36 is: 1,623,687.71
Step by Step Solution
- Step 1: Write the proportion equation
2,156,745.68 : 2,976,205.16 = 1,176,626.36 : x - Step 2: Convert to fraction form
2,156,745.68/2,976,205.16 = 1,176,626.36/x - Step 3: Cross multiply
2,156,745.68x = 2,976,205.16 × 1,176,626.36 - Step 4: Simplify right side
2,156,745.68x = 3,501,881,444,024.02 - Step 5: Solve for x
x = 3,501,881,444,024.02/2,156,745.68 - Step 6: Final answer
x = 1,623,687.71
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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.