Finding the Fourth Proportional to 2,117,897.51, 2,922,721.13 and 1,151,027.84
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Solution
The fourth proportional to 2,117,897.51, 2,922,721.13 and 1,151,027.84 is: 1,588,430.68
Step by Step Solution
- Step 1: Write the proportion equation
2,117,897.51 : 2,922,721.13 = 1,151,027.84 : x - Step 2: Convert to fraction form
2,117,897.51/2,922,721.13 = 1,151,027.84/x - Step 3: Cross multiply
2,117,897.51x = 2,922,721.13 × 1,151,027.84 - Step 4: Simplify right side
2,117,897.51x = 3,364,133,368,817.51 - Step 5: Solve for x
x = 3,364,133,368,817.51/2,117,897.51 - Step 6: Final answer
x = 1,588,430.68
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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.