Finding the Fourth Proportional to 413,593.20, 579,817.80 and 413,593.20
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Solution
The fourth proportional to 413,593.20, 579,817.80 and 413,593.20 is: 579,817.80
Step by Step Solution
- Step 1: Write the proportion equation
413,593.20 : 579,817.80 = 413,593.20 : x - Step 2: Convert to fraction form
413,593.20/579,817.80 = 413,593.20/x - Step 3: Cross multiply
413,593.20x = 579,817.80 × 413,593.20 - Step 4: Simplify right side
413,593.20x = 239,808,699,318.96 - Step 5: Solve for x
x = 239,808,699,318.96/413,593.20 - Step 6: Final answer
x = 579,817.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.