Finding the Fourth Proportional to 418,319.70, 578,400.93 and 365,175.60
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Solution
The fourth proportional to 418,319.70, 578,400.93 and 365,175.60 is: 504,919.82
Step by Step Solution
- Step 1: Write the proportion equation
418,319.70 : 578,400.93 = 365,175.60 : x - Step 2: Convert to fraction form
418,319.70/578,400.93 = 365,175.60/x - Step 3: Cross multiply
418,319.70x = 578,400.93 × 365,175.60 - Step 4: Simplify right side
418,319.70x = 211,217,906,653.31 - Step 5: Solve for x
x = 211,217,906,653.31/418,319.70 - Step 6: Final answer
x = 504,919.82
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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.