Finding the Fourth Proportional to 665,180.61, 917,950.11 and 378,700.68
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Solution
The fourth proportional to 665,180.61, 917,950.11 and 378,700.68 is: 522,607.43
Step by Step Solution
- Step 1: Write the proportion equation
665,180.61 : 917,950.11 = 378,700.68 : x - Step 2: Convert to fraction form
665,180.61/917,950.11 = 378,700.68/x - Step 3: Cross multiply
665,180.61x = 917,950.11 × 378,700.68 - Step 4: Simplify right side
665,180.61x = 347,628,330,863.08 - Step 5: Solve for x
x = 347,628,330,863.08/665,180.61 - Step 6: Final answer
x = 522,607.43
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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.