Finding the Fourth Proportional to 1,689,537.16, 2,331,211.81 and 964,620.78
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Solution
The fourth proportional to 1,689,537.16, 2,331,211.81 and 964,620.78 is: 1,330,977.15
Step by Step Solution
- Step 1: Write the proportion equation
1,689,537.16 : 2,331,211.81 = 964,620.78 : x - Step 2: Convert to fraction form
1,689,537.16/2,331,211.81 = 964,620.78/x - Step 3: Cross multiply
1,689,537.16x = 2,331,211.81 × 964,620.78 - Step 4: Simplify right side
1,689,537.16x = 2,248,735,354,507.41 - Step 5: Solve for x
x = 2,248,735,354,507.41/1,689,537.16 - Step 6: Final answer
x = 1,330,977.15
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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.