Finding the Fourth Proportional to 912,130.16, 1,368,227.84 and 313,087.23
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Solution
The fourth proportional to 912,130.16, 1,368,227.84 and 313,087.23 is: 469,642.04
Step by Step Solution
- Step 1: Write the proportion equation
912,130.16 : 1,368,227.84 = 313,087.23 : x - Step 2: Convert to fraction form
912,130.16/1,368,227.84 = 313,087.23/x - Step 3: Cross multiply
912,130.16x = 1,368,227.84 × 313,087.23 - Step 4: Simplify right side
912,130.16x = 428,374,662,869.05 - Step 5: Solve for x
x = 428,374,662,869.05/912,130.16 - Step 6: Final answer
x = 469,642.04
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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.