Finding the Fourth Proportional to 788,975.42, 1,088,791.07 and 426,398.42
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Solution
The fourth proportional to 788,975.42, 1,088,791.07 and 426,398.42 is: 588,432.52
Step by Step Solution
- Step 1: Write the proportion equation
788,975.42 : 1,088,791.07 = 426,398.42 : x - Step 2: Convert to fraction form
788,975.42/1,088,791.07 = 426,398.42/x - Step 3: Cross multiply
788,975.42x = 1,088,791.07 × 426,398.42 - Step 4: Simplify right side
788,975.42x = 464,258,792,548.10 - Step 5: Solve for x
x = 464,258,792,548.10/788,975.42 - Step 6: Final answer
x = 588,432.52
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1.5x scale
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.