Finding the Fourth Proportional to 1,286,263.04, 1,775,095.68 and 776,865.92
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Solution
The fourth proportional to 1,286,263.04, 1,775,095.68 and 776,865.92 is: 1,072,106.79
Step by Step Solution
- Step 1: Write the proportion equation
1,286,263.04 : 1,775,095.68 = 776,865.92 : x - Step 2: Convert to fraction form
1,286,263.04/1,775,095.68 = 776,865.92/x - Step 3: Cross multiply
1,286,263.04x = 1,775,095.68 × 776,865.92 - Step 4: Simplify right side
1,286,263.04x = 1,379,011,338,531.23 - Step 5: Solve for x
x = 1,379,011,338,531.23/1,286,263.04 - Step 6: Final answer
x = 1,072,106.79
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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.