Finding the Fourth Proportional to 748,557.42, 1,122,840.99 and 299,316.03
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Solution
The fourth proportional to 748,557.42, 1,122,840.99 and 299,316.03 is: 448,975.99
Step by Step Solution
- Step 1: Write the proportion equation
748,557.42 : 1,122,840.99 = 299,316.03 : x - Step 2: Convert to fraction form
748,557.42/1,122,840.99 = 299,316.03/x - Step 3: Cross multiply
748,557.42x = 1,122,840.99 × 299,316.03 - Step 4: Simplify right side
748,557.42x = 336,084,307,448.07 - Step 5: Solve for x
x = 336,084,307,448.07/748,557.42 - Step 6: Final answer
x = 448,975.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.