Finding the Fourth Proportional to 664,358.40, 996,537.60 and 646,862.40
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Solution
The fourth proportional to 664,358.40, 996,537.60 and 646,862.40 is: 970,293.60
Step by Step Solution
- Step 1: Write the proportion equation
664,358.40 : 996,537.60 = 646,862.40 : x - Step 2: Convert to fraction form
664,358.40/996,537.60 = 646,862.40/x - Step 3: Cross multiply
664,358.40x = 996,537.60 × 646,862.40 - Step 4: Simplify right side
664,358.40x = 644,622,703,626.24 - Step 5: Solve for x
x = 644,622,703,626.24/664,358.40 - Step 6: Final answer
x = 970,293.60
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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.