Finding the Fourth Proportional to 680,794.77, 939,489.12 and 374,865.06
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Solution
The fourth proportional to 680,794.77, 939,489.12 and 374,865.06 is: 517,309.56
Step by Step Solution
- Step 1: Write the proportion equation
680,794.77 : 939,489.12 = 374,865.06 : x - Step 2: Convert to fraction form
680,794.77/939,489.12 = 374,865.06/x - Step 3: Cross multiply
680,794.77x = 939,489.12 × 374,865.06 - Step 4: Simplify right side
680,794.77x = 352,181,645,338.15 - Step 5: Solve for x
x = 352,181,645,338.15/680,794.77 - Step 6: Final answer
x = 517,309.56
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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.