Finding the Fourth Proportional to 2,128,312.02, 3,193,589.07 and 1,230,384.39
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Solution
The fourth proportional to 2,128,312.02, 3,193,589.07 and 1,230,384.39 is: 1,846,224.66
Step by Step Solution
- Step 1: Write the proportion equation
2,128,312.02 : 3,193,589.07 = 1,230,384.39 : x - Step 2: Convert to fraction form
2,128,312.02/3,193,589.07 = 1,230,384.39/x - Step 3: Cross multiply
2,128,312.02x = 3,193,589.07 × 1,230,384.39 - Step 4: Simplify right side
2,128,312.02x = 3,929,342,139,802.62 - Step 5: Solve for x
x = 3,929,342,139,802.62/2,128,312.02 - Step 6: Final answer
x = 1,846,224.66
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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.