Finding the Fourth Proportional to 748,391.76, 1,032,781.32 and 408,865.68
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Solution
The fourth proportional to 748,391.76, 1,032,781.32 and 408,865.68 is: 564,235.02
Step by Step Solution
- Step 1: Write the proportion equation
748,391.76 : 1,032,781.32 = 408,865.68 : x - Step 2: Convert to fraction form
748,391.76/1,032,781.32 = 408,865.68/x - Step 3: Cross multiply
748,391.76x = 1,032,781.32 × 408,865.68 - Step 4: Simplify right side
748,391.76x = 422,268,836,693.10 - Step 5: Solve for x
x = 422,268,836,693.10/748,391.76 - Step 6: Final answer
x = 564,235.02
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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.