Finding the Fourth Proportional to 557,400.36, 769,214.70 and 302,755.80
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Solution
The fourth proportional to 557,400.36, 769,214.70 and 302,755.80 is: 417,804.20
Step by Step Solution
- Step 1: Write the proportion equation
557,400.36 : 769,214.70 = 302,755.80 : x - Step 2: Convert to fraction form
557,400.36/769,214.70 = 302,755.80/x - Step 3: Cross multiply
557,400.36x = 769,214.70 × 302,755.80 - Step 4: Simplify right side
557,400.36x = 232,884,211,870.26 - Step 5: Solve for x
x = 232,884,211,870.26/557,400.36 - Step 6: Final answer
x = 417,804.20
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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.