Finding the Fourth Proportional to 572,998.11, 790,761.99 and 318,349.30
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Solution
The fourth proportional to 572,998.11, 790,761.99 and 318,349.30 is: 439,335.70
Step by Step Solution
- Step 1: Write the proportion equation
572,998.11 : 790,761.99 = 318,349.30 : x - Step 2: Convert to fraction form
572,998.11/790,761.99 = 318,349.30/x - Step 3: Cross multiply
572,998.11x = 790,761.99 × 318,349.30 - Step 4: Simplify right side
572,998.11x = 251,738,525,983.11 - Step 5: Solve for x
x = 251,738,525,983.11/572,998.11 - Step 6: Final answer
x = 439,335.70
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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.