Finding the Fourth Proportional to 4,084,121.42, 6,128,248.85 and 1,689,684.47
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Solution
The fourth proportional to 4,084,121.42, 6,128,248.85 and 1,689,684.47 is: 2,535,381.75
Step by Step Solution
- Step 1: Write the proportion equation
4,084,121.42 : 6,128,248.85 = 1,689,684.47 : x - Step 2: Convert to fraction form
4,084,121.42/6,128,248.85 = 1,689,684.47/x - Step 3: Cross multiply
4,084,121.42x = 6,128,248.85 × 1,689,684.47 - Step 4: Simplify right side
4,084,121.42x = 10,354,806,901,691.94 - Step 5: Solve for x
x = 10,354,806,901,691.94/4,084,121.42 - Step 6: Final answer
x = 2,535,381.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.