Finding the Fourth Proportional to 626,652.96, 864,794.56 and 354,721.20
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Solution
The fourth proportional to 626,652.96, 864,794.56 and 354,721.20 is: 489,522.88
Step by Step Solution
- Step 1: Write the proportion equation
626,652.96 : 864,794.56 = 354,721.20 : x - Step 2: Convert to fraction form
626,652.96/864,794.56 = 354,721.20/x - Step 3: Cross multiply
626,652.96x = 864,794.56 × 354,721.20 - Step 4: Simplify right side
626,652.96x = 306,760,964,076.67 - Step 5: Solve for x
x = 306,760,964,076.67/626,652.96 - Step 6: Final answer
x = 489,522.88
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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.