Finding the Fourth Proportional to 856,167.90, 1,181,372.87 and 512,145.99
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Solution
The fourth proportional to 856,167.90, 1,181,372.87 and 512,145.99 is: 706,678.41
Step by Step Solution
- Step 1: Write the proportion equation
856,167.90 : 1,181,372.87 = 512,145.99 : x - Step 2: Convert to fraction form
856,167.90/1,181,372.87 = 512,145.99/x - Step 3: Cross multiply
856,167.90x = 1,181,372.87 × 512,145.99 - Step 4: Simplify right side
856,167.90x = 605,035,369,597.70 - Step 5: Solve for x
x = 605,035,369,597.70/856,167.90 - Step 6: Final answer
x = 706,678.41
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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.