Finding the Fourth Proportional to 628,916.60, 943,331.70 and 202,446.20
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Solution
The fourth proportional to 628,916.60, 943,331.70 and 202,446.20 is: 303,655.39
Step by Step Solution
- Step 1: Write the proportion equation
628,916.60 : 943,331.70 = 202,446.20 : x - Step 2: Convert to fraction form
628,916.60/943,331.70 = 202,446.20/x - Step 3: Cross multiply
628,916.60x = 943,331.70 × 202,446.20 - Step 4: Simplify right side
628,916.60x = 190,973,918,004.54 - Step 5: Solve for x
x = 190,973,918,004.54/628,916.60 - Step 6: Final answer
x = 303,655.39
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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.