Finding the Fourth Proportional to 2,977,943.56, 4,110,292.02 and 1,689,538.12
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Solution
The fourth proportional to 2,977,943.56, 4,110,292.02 and 1,689,538.12 is: 2,331,976.72
Step by Step Solution
- Step 1: Write the proportion equation
2,977,943.56 : 4,110,292.02 = 1,689,538.12 : x - Step 2: Convert to fraction form
2,977,943.56/4,110,292.02 = 1,689,538.12/x - Step 3: Cross multiply
2,977,943.56x = 4,110,292.02 × 1,689,538.12 - Step 4: Simplify right side
2,977,943.56x = 6,944,495,052,121.80 - Step 5: Solve for x
x = 6,944,495,052,121.80/2,977,943.56 - Step 6: Final answer
x = 2,331,976.72
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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.