Finding the Fourth Proportional to 508,416.72, 762,629.42 and 129,337.80
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Solution
The fourth proportional to 508,416.72, 762,629.42 and 129,337.80 is: 194,007.80
Step by Step Solution
- Step 1: Write the proportion equation
508,416.72 : 762,629.42 = 129,337.80 : x - Step 2: Convert to fraction form
508,416.72/762,629.42 = 129,337.80/x - Step 3: Cross multiply
508,416.72x = 762,629.42 × 129,337.80 - Step 4: Simplify right side
508,416.72x = 98,636,811,398.08 - Step 5: Solve for x
x = 98,636,811,398.08/508,416.72 - Step 6: Final answer
x = 194,007.80
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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.