Finding the Fourth Proportional to 716,674.58, 988,986.12 and 394,354.52
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Solution
The fourth proportional to 716,674.58, 988,986.12 and 394,354.52 is: 544,195.59
Step by Step Solution
- Step 1: Write the proportion equation
716,674.58 : 988,986.12 = 394,354.52 : x - Step 2: Convert to fraction form
716,674.58/988,986.12 = 394,354.52/x - Step 3: Cross multiply
716,674.58x = 988,986.12 × 394,354.52 - Step 4: Simplify right side
716,674.58x = 390,011,146,639.26 - Step 5: Solve for x
x = 390,011,146,639.26/716,674.58 - Step 6: Final answer
x = 544,195.59
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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.