Finding the Fourth Proportional to 659,980.99, 910,642.03 and 401,684.92
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Solution
The fourth proportional to 659,980.99, 910,642.03 and 401,684.92 is: 554,245.02
Step by Step Solution
- Step 1: Write the proportion equation
659,980.99 : 910,642.03 = 401,684.92 : x - Step 2: Convert to fraction form
659,980.99/910,642.03 = 401,684.92/x - Step 3: Cross multiply
659,980.99x = 910,642.03 × 401,684.92 - Step 4: Simplify right side
659,980.99x = 365,791,171,963.42 - Step 5: Solve for x
x = 365,791,171,963.42/659,980.99 - Step 6: Final answer
x = 554,245.02
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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.