Finding the Fourth Proportional to 1,689,908.63, 2,330,791.58 and 1,224,081.74
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Solution
The fourth proportional to 1,689,908.63, 2,330,791.58 and 1,224,081.74 is: 1,688,303.94
Step by Step Solution
- Step 1: Write the proportion equation
1,689,908.63 : 2,330,791.58 = 1,224,081.74 : x - Step 2: Convert to fraction form
1,689,908.63/2,330,791.58 = 1,224,081.74/x - Step 3: Cross multiply
1,689,908.63x = 2,330,791.58 × 1,224,081.74 - Step 4: Simplify right side
1,689,908.63x = 2,853,079,395,049.38 - Step 5: Solve for x
x = 2,853,079,395,049.38/1,689,908.63 - Step 6: Final answer
x = 1,688,303.94
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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.