Finding the Fourth Proportional to 1,689,138.99, 2,330,432.58 and 963,464.43
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Solution
The fourth proportional to 1,689,138.99, 2,330,432.58 and 963,464.43 is: 1,329,250.53
Step by Step Solution
- Step 1: Write the proportion equation
1,689,138.99 : 2,330,432.58 = 963,464.43 : x - Step 2: Convert to fraction form
1,689,138.99/2,330,432.58 = 963,464.43/x - Step 3: Cross multiply
1,689,138.99x = 2,330,432.58 × 963,464.43 - Step 4: Simplify right side
1,689,138.99x = 2,245,288,897,343.13 - Step 5: Solve for x
x = 2,245,288,897,343.13/1,689,138.99 - Step 6: Final answer
x = 1,329,250.53
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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.