Finding the Fourth Proportional to 429,063.48, 643,699.26 and 129,526.17
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Solution
The fourth proportional to 429,063.48, 643,699.26 and 129,526.17 is: 194,320.66
Step by Step Solution
- Step 1: Write the proportion equation
429,063.48 : 643,699.26 = 129,526.17 : x - Step 2: Convert to fraction form
429,063.48/643,699.26 = 129,526.17/x - Step 3: Cross multiply
429,063.48x = 643,699.26 × 129,526.17 - Step 4: Simplify right side
429,063.48x = 83,375,899,779.63 - Step 5: Solve for x
x = 83,375,899,779.63/429,063.48 - Step 6: Final answer
x = 194,320.66
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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.