Finding the Fourth Proportional to 478,249.20, 660,055.65 and 363,338.75
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Solution
The fourth proportional to 478,249.20, 660,055.65 and 363,338.75 is: 501,461.99
Step by Step Solution
- Step 1: Write the proportion equation
478,249.20 : 660,055.65 = 363,338.75 : x - Step 2: Convert to fraction form
478,249.20/660,055.65 = 363,338.75/x - Step 3: Cross multiply
478,249.20x = 660,055.65 × 363,338.75 - Step 4: Simplify right side
478,249.20x = 239,823,794,801.44 - Step 5: Solve for x
x = 239,823,794,801.44/478,249.20 - Step 6: Final answer
x = 501,461.99
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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.