Finding the Fourth Proportional to 1,117,137.63, 1,674,374.81 and 778,343.79
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Solution
The fourth proportional to 1,117,137.63, 1,674,374.81 and 778,343.79 is: 1,166,587.89
Step by Step Solution
- Step 1: Write the proportion equation
1,117,137.63 : 1,674,374.81 = 778,343.79 : x - Step 2: Convert to fraction form
1,117,137.63/1,674,374.81 = 778,343.79/x - Step 3: Cross multiply
1,117,137.63x = 1,674,374.81 × 778,343.79 - Step 4: Simplify right side
1,117,137.63x = 1,303,239,231,604.21 - Step 5: Solve for x
x = 1,303,239,231,604.21/1,117,137.63 - Step 6: Final answer
x = 1,166,587.89
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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.