Finding the Fourth Proportional to 626,357.65, 864,374.33 and 354,420.09
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Solution
The fourth proportional to 626,357.65, 864,374.33 and 354,420.09 is: 489,100.17
Step by Step Solution
- Step 1: Write the proportion equation
626,357.65 : 864,374.33 = 354,420.09 : x - Step 2: Convert to fraction form
626,357.65/864,374.33 = 354,420.09/x - Step 3: Cross multiply
626,357.65x = 864,374.33 × 354,420.09 - Step 4: Simplify right side
626,357.65x = 306,351,632,115.72 - Step 5: Solve for x
x = 306,351,632,115.72/626,357.65 - Step 6: Final answer
x = 489,100.17
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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.