Finding the Fourth Proportional to 523,239.80, 721,984.06 and 308,350.70
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Solution
The fourth proportional to 523,239.80, 721,984.06 and 308,350.70 is: 425,472.77
Step by Step Solution
- Step 1: Write the proportion equation
523,239.80 : 721,984.06 = 308,350.70 : x - Step 2: Convert to fraction form
523,239.80/721,984.06 = 308,350.70/x - Step 3: Cross multiply
523,239.80x = 721,984.06 × 308,350.70 - Step 4: Simplify right side
523,239.80x = 222,624,285,909.05 - Step 5: Solve for x
x = 222,624,285,909.05/523,239.80 - Step 6: Final answer
x = 425,472.77
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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.