Finding the Fourth Proportional to 4,042,688.74, 5,578,825.21 and 2,207,058.30
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Solution
The fourth proportional to 4,042,688.74, 5,578,825.21 and 2,207,058.30 is: 3,045,693.91
Step by Step Solution
- Step 1: Write the proportion equation
4,042,688.74 : 5,578,825.21 = 2,207,058.30 : x - Step 2: Convert to fraction form
4,042,688.74/5,578,825.21 = 2,207,058.30/x - Step 3: Cross multiply
4,042,688.74x = 5,578,825.21 × 2,207,058.30 - Step 4: Simplify right side
4,042,688.74x = 12,312,792,478,462.10 - Step 5: Solve for x
x = 12,312,792,478,462.10/4,042,688.74 - Step 6: Final answer
x = 3,045,693.91
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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.