Finding the Fourth Proportional to 557,420.40, 769,249.08 and 302,771.76
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Solution
The fourth proportional to 557,420.40, 769,249.08 and 302,771.76 is: 417,829.88
Step by Step Solution
- Step 1: Write the proportion equation
557,420.40 : 769,249.08 = 302,771.76 : x - Step 2: Convert to fraction form
557,420.40/769,249.08 = 302,771.76/x - Step 3: Cross multiply
557,420.40x = 769,249.08 × 302,771.76 - Step 4: Simplify right side
557,420.40x = 232,906,897,829.98 - Step 5: Solve for x
x = 232,906,897,829.98/557,420.40 - Step 6: Final answer
x = 417,829.88
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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.