Finding the Fourth Proportional to 1,230,211.39, 1,697,740.92 and 686,394.70
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Solution
The fourth proportional to 1,230,211.39, 1,697,740.92 and 686,394.70 is: 947,252.14
Step by Step Solution
- Step 1: Write the proportion equation
1,230,211.39 : 1,697,740.92 = 686,394.70 : x - Step 2: Convert to fraction form
1,230,211.39/1,697,740.92 = 686,394.70/x - Step 3: Cross multiply
1,230,211.39x = 1,697,740.92 × 686,394.70 - Step 4: Simplify right side
1,230,211.39x = 1,165,320,369,461.12 - Step 5: Solve for x
x = 1,165,320,369,461.12/1,230,211.39 - Step 6: Final answer
x = 947,252.14
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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.