Finding the Fourth Proportional to 4,090,838.31, 5,645,396.12 and 2,255,363.73
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Solution
The fourth proportional to 4,090,838.31, 5,645,396.12 and 2,255,363.73 is: 3,112,423.59
Step by Step Solution
- Step 1: Write the proportion equation
4,090,838.31 : 5,645,396.12 = 2,255,363.73 : x - Step 2: Convert to fraction form
4,090,838.31/5,645,396.12 = 2,255,363.73/x - Step 3: Cross multiply
4,090,838.31x = 5,645,396.12 × 2,255,363.73 - Step 4: Simplify right side
4,090,838.31x = 12,732,421,639,253.91 - Step 5: Solve for x
x = 12,732,421,639,253.91/4,090,838.31 - Step 6: Final answer
x = 3,112,423.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.