Finding the Fourth Proportional to 681,420.78, 940,366.97 and 375,508.10
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Solution
The fourth proportional to 681,420.78, 940,366.97 and 375,508.10 is: 518,204.65
Step by Step Solution
- Step 1: Write the proportion equation
681,420.78 : 940,366.97 = 375,508.10 : x - Step 2: Convert to fraction form
681,420.78/940,366.97 = 375,508.10/x - Step 3: Cross multiply
681,420.78x = 940,366.97 × 375,508.10 - Step 4: Simplify right side
681,420.78x = 353,115,416,088.99 - Step 5: Solve for x
x = 353,115,416,088.99/681,420.78 - Step 6: Final answer
x = 518,204.65
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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.