Finding the Fourth Proportional to 1,290,772.09, 1,935,497.17 and 758,453.05
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Solution
The fourth proportional to 1,290,772.09, 1,935,497.17 and 758,453.05 is: 1,137,291.19
Step by Step Solution
- Step 1: Write the proportion equation
1,290,772.09 : 1,935,497.17 = 758,453.05 : x - Step 2: Convert to fraction form
1,290,772.09/1,935,497.17 = 758,453.05/x - Step 3: Cross multiply
1,290,772.09x = 1,935,497.17 × 758,453.05 - Step 4: Simplify right side
1,290,772.09x = 1,467,983,731,852.87 - Step 5: Solve for x
x = 1,467,983,731,852.87/1,290,772.09 - Step 6: Final answer
x = 1,137,291.19
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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.