Finding the Fourth Proportional to 539,163.70, 807,148.11 and 399,548.98
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Solution
The fourth proportional to 539,163.70, 807,148.11 and 399,548.98 is: 598,139.68
Step by Step Solution
- Step 1: Write the proportion equation
539,163.70 : 807,148.11 = 399,548.98 : x - Step 2: Convert to fraction form
539,163.70/807,148.11 = 399,548.98/x - Step 3: Cross multiply
539,163.70x = 807,148.11 × 399,548.98 - Step 4: Simplify right side
539,163.70x = 322,495,204,059.43 - Step 5: Solve for x
x = 322,495,204,059.43/539,163.70 - Step 6: Final answer
x = 598,139.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.