Finding the Fourth Proportional to 838,441.91, 1,157,070.62 and 456,489.65
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Solution
The fourth proportional to 838,441.91, 1,157,070.62 and 456,489.65 is: 629,967.03
Step by Step Solution
- Step 1: Write the proportion equation
838,441.91 : 1,157,070.62 = 456,489.65 : x - Step 2: Convert to fraction form
838,441.91/1,157,070.62 = 456,489.65/x - Step 3: Cross multiply
838,441.91x = 1,157,070.62 × 456,489.65 - Step 4: Simplify right side
838,441.91x = 528,190,762,349.08 - Step 5: Solve for x
x = 528,190,762,349.08/838,441.91 - Step 6: Final answer
x = 629,967.03
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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.