Finding the Fourth Proportional to 457,816.34, 686,494.74 and 217,858.70
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Solution
The fourth proportional to 457,816.34, 686,494.74 and 217,858.70 is: 326,678.71
Step by Step Solution
- Step 1: Write the proportion equation
457,816.34 : 686,494.74 = 217,858.70 : x - Step 2: Convert to fraction form
457,816.34/686,494.74 = 217,858.70/x - Step 3: Cross multiply
457,816.34x = 686,494.74 × 217,858.70 - Step 4: Simplify right side
457,816.34x = 149,558,851,613.24 - Step 5: Solve for x
x = 149,558,851,613.24/457,816.34 - Step 6: Final answer
x = 326,678.71
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.