Finding the Fourth Proportional to 2,989,807.80, 4,484,711.70 and 1,726,159.20
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Solution
The fourth proportional to 2,989,807.80, 4,484,711.70 and 1,726,159.20 is: 2,589,238.80
Step by Step Solution
- Step 1: Write the proportion equation
2,989,807.80 : 4,484,711.70 = 1,726,159.20 : x - Step 2: Convert to fraction form
2,989,807.80/4,484,711.70 = 1,726,159.20/x - Step 3: Cross multiply
2,989,807.80x = 4,484,711.70 × 1,726,159.20 - Step 4: Simplify right side
2,989,807.80x = 7,741,326,360,302.64 - Step 5: Solve for x
x = 7,741,326,360,302.64/2,989,807.80 - Step 6: Final answer
x = 2,589,238.80
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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.