Finding the Fourth Proportional to 680,461.25, 939,029.12 and 374,531.09
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Solution
The fourth proportional to 680,461.25, 939,029.12 and 374,531.09 is: 516,848.83
Step by Step Solution
- Step 1: Write the proportion equation
680,461.25 : 939,029.12 = 374,531.09 : x - Step 2: Convert to fraction form
680,461.25/939,029.12 = 374,531.09/x - Step 3: Cross multiply
680,461.25x = 939,029.12 × 374,531.09 - Step 4: Simplify right side
680,461.25x = 351,695,596,096.52 - Step 5: Solve for x
x = 351,695,596,096.52/680,461.25 - Step 6: Final answer
x = 516,848.83
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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.