Finding the Fourth Proportional to 403,765.80, 604,968.30 and 319,201.80
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Solution
The fourth proportional to 403,765.80, 604,968.30 and 319,201.80 is: 478,264.80
Step by Step Solution
- Step 1: Write the proportion equation
403,765.80 : 604,968.30 = 319,201.80 : x - Step 2: Convert to fraction form
403,765.80/604,968.30 = 319,201.80/x - Step 3: Cross multiply
403,765.80x = 604,968.30 × 319,201.80 - Step 4: Simplify right side
403,765.80x = 193,106,970,302.94 - Step 5: Solve for x
x = 193,106,970,302.94/403,765.80 - Step 6: Final answer
x = 478,264.80
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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.