Finding the Fourth Proportional to 626,816.96, 864,998.53 and 354,877.79
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Solution
The fourth proportional to 626,816.96, 864,998.53 and 354,877.79 is: 489,726.32
Step by Step Solution
- Step 1: Write the proportion equation
626,816.96 : 864,998.53 = 354,877.79 : x - Step 2: Convert to fraction form
626,816.96/864,998.53 = 354,877.79/x - Step 3: Cross multiply
626,816.96x = 864,998.53 × 354,877.79 - Step 4: Simplify right side
626,816.96x = 306,968,761,467.46 - Step 5: Solve for x
x = 306,968,761,467.46/626,816.96 - Step 6: Final answer
x = 489,726.32
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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.