Finding the Fourth Proportional to 716,098.19, 988,195.79 and 393,808.29
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Solution
The fourth proportional to 716,098.19, 988,195.79 and 393,808.29 is: 543,444.59
Step by Step Solution
- Step 1: Write the proportion equation
716,098.19 : 988,195.79 = 393,808.29 : x - Step 2: Convert to fraction form
716,098.19/988,195.79 = 393,808.29/x - Step 3: Cross multiply
716,098.19x = 988,195.79 × 393,808.29 - Step 4: Simplify right side
716,098.19x = 389,159,687,335.08 - Step 5: Solve for x
x = 389,159,687,335.08/716,098.19 - Step 6: Final answer
x = 543,444.59
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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.