Finding the Fourth Proportional to 1,207,966.81, 1,666,951.71 and 664,098.66
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Solution
The fourth proportional to 1,207,966.81, 1,666,951.71 and 664,098.66 is: 916,432.79
Step by Step Solution
- Step 1: Write the proportion equation
1,207,966.81 : 1,666,951.71 = 664,098.66 : x - Step 2: Convert to fraction form
1,207,966.81/1,666,951.71 = 664,098.66/x - Step 3: Cross multiply
1,207,966.81x = 1,666,951.71 × 664,098.66 - Step 4: Simplify right side
1,207,966.81x = 1,107,020,396,895.71 - Step 5: Solve for x
x = 1,107,020,396,895.71/1,207,966.81 - Step 6: Final answer
x = 916,432.79
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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.