Finding the Fourth Proportional to 4,905,799.64, 7,358,138.89 and 1,311,846.81
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Solution
The fourth proportional to 4,905,799.64, 7,358,138.89 and 1,311,846.81 is: 1,967,620.31
Step by Step Solution
- Step 1: Write the proportion equation
4,905,799.64 : 7,358,138.89 = 1,311,846.81 : x - Step 2: Convert to fraction form
4,905,799.64/7,358,138.89 = 1,311,846.81/x - Step 3: Cross multiply
4,905,799.64x = 7,358,138.89 × 1,311,846.81 - Step 4: Simplify right side
4,905,799.64x = 9,652,750,999,510.80 - Step 5: Solve for x
x = 9,652,750,999,510.80/4,905,799.64 - Step 6: Final answer
x = 1,967,620.31
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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.