Finding the Fourth Proportional to 1,214,998.36, 1,662,126.35 and 1,209,880.80
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Solution
The fourth proportional to 1,214,998.36, 1,662,126.35 and 1,209,880.80 is: 1,655,125.49
Step by Step Solution
- Step 1: Write the proportion equation
1,214,998.36 : 1,662,126.35 = 1,209,880.80 : x - Step 2: Convert to fraction form
1,214,998.36/1,662,126.35 = 1,209,880.80/x - Step 3: Cross multiply
1,214,998.36x = 1,662,126.35 × 1,209,880.80 - Step 4: Simplify right side
1,214,998.36x = 2,010,974,758,039.08 - Step 5: Solve for x
x = 2,010,974,758,039.08/1,214,998.36 - Step 6: Final answer
x = 1,655,125.49
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.