Finding the Fourth Proportional to 403,771.80, 604,977.30 and 319,207.80
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Solution
The fourth proportional to 403,771.80, 604,977.30 and 319,207.80 is: 478,273.80
Step by Step Solution
- Step 1: Write the proportion equation
403,771.80 : 604,977.30 = 319,207.80 : x - Step 2: Convert to fraction form
403,771.80/604,977.30 = 319,207.80/x - Step 3: Cross multiply
403,771.80x = 604,977.30 × 319,207.80 - Step 4: Simplify right side
403,771.80x = 193,113,472,982.94 - Step 5: Solve for x
x = 193,113,472,982.94/403,771.80 - Step 6: Final answer
x = 478,273.80
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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.