Finding the Fourth Proportional to 573,615.68, 791,557.14 and 318,961.40
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Solution
The fourth proportional to 573,615.68, 791,557.14 and 318,961.40 is: 440,148.66
Step by Step Solution
- Step 1: Write the proportion equation
573,615.68 : 791,557.14 = 318,961.40 : x - Step 2: Convert to fraction form
573,615.68/791,557.14 = 318,961.40/x - Step 3: Cross multiply
573,615.68x = 791,557.14 × 318,961.40 - Step 4: Simplify right side
573,615.68x = 252,476,173,554.40 - Step 5: Solve for x
x = 252,476,173,554.40/573,615.68 - Step 6: Final answer
x = 440,148.66
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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.