Finding the Fourth Proportional to 785,765.12, 1,179,163.92 and 431,028.32
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Solution
The fourth proportional to 785,765.12, 1,179,163.92 and 431,028.32 is: 646,825.66
Step by Step Solution
- Step 1: Write the proportion equation
785,765.12 : 1,179,163.92 = 431,028.32 : x - Step 2: Convert to fraction form
785,765.12/1,179,163.92 = 431,028.32/x - Step 3: Cross multiply
785,765.12x = 1,179,163.92 × 431,028.32 - Step 4: Simplify right side
785,765.12x = 508,253,043,442.21 - Step 5: Solve for x
x = 508,253,043,442.21/785,765.12 - Step 6: Final answer
x = 646,825.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.