Finding the Fourth Proportional to 403,740.80, 604,930.80 and 319,176.80
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Solution
The fourth proportional to 403,740.80, 604,930.80 and 319,176.80 is: 478,227.31
Step by Step Solution
- Step 1: Write the proportion equation
403,740.80 : 604,930.80 = 319,176.80 : x - Step 2: Convert to fraction form
403,740.80/604,930.80 = 319,176.80/x - Step 3: Cross multiply
403,740.80x = 604,930.80 × 319,176.80 - Step 4: Simplify right side
403,740.80x = 193,079,876,965.44 - Step 5: Solve for x
x = 193,079,876,965.44/403,740.80 - Step 6: Final answer
x = 478,227.31
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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.