Finding the Fourth Proportional to 674,305.49, 930,559.84 and 402,531.12
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Solution
The fourth proportional to 674,305.49, 930,559.84 and 402,531.12 is: 555,503.84
Step by Step Solution
- Step 1: Write the proportion equation
674,305.49 : 930,559.84 = 402,531.12 : x - Step 2: Convert to fraction form
674,305.49/930,559.84 = 402,531.12/x - Step 3: Cross multiply
674,305.49x = 930,559.84 × 402,531.12 - Step 4: Simplify right side
674,305.49x = 374,579,293,615.89 - Step 5: Solve for x
x = 374,579,293,615.89/674,305.49 - Step 6: Final answer
x = 555,503.84
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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.