Finding the Fourth Proportional to 729,817.53, 1,007,127.99 and 403,124.68
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Solution
The fourth proportional to 729,817.53, 1,007,127.99 and 403,124.68 is: 556,300.90
Step by Step Solution
- Step 1: Write the proportion equation
729,817.53 : 1,007,127.99 = 403,124.68 : x - Step 2: Convert to fraction form
729,817.53/1,007,127.99 = 403,124.68/x - Step 3: Cross multiply
729,817.53x = 1,007,127.99 × 403,124.68 - Step 4: Simplify right side
729,817.53x = 405,998,149,237.61 - Step 5: Solve for x
x = 405,998,149,237.61/729,817.53 - Step 6: Final answer
x = 556,300.90
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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.