Finding the Fourth Proportional to 2,876,802.48, 3,970,042.74 and 1,587,615.21
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Solution
The fourth proportional to 2,876,802.48, 3,970,042.74 and 1,587,615.21 is: 2,190,939.52
Step by Step Solution
- Step 1: Write the proportion equation
2,876,802.48 : 3,970,042.74 = 1,587,615.21 : x - Step 2: Convert to fraction form
2,876,802.48/3,970,042.74 = 1,587,615.21/x - Step 3: Cross multiply
2,876,802.48x = 3,970,042.74 × 1,587,615.21 - Step 4: Simplify right side
2,876,802.48x = 6,302,900,238,374.08 - Step 5: Solve for x
x = 6,302,900,238,374.08/2,876,802.48 - Step 6: Final answer
x = 2,190,939.52
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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.