Finding the Fourth Proportional to 547,257.70, 819,136.95 and 389,793.70
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Solution
The fourth proportional to 547,257.70, 819,136.95 and 389,793.70 is: 583,444.37
Step by Step Solution
- Step 1: Write the proportion equation
547,257.70 : 819,136.95 = 389,793.70 : x - Step 2: Convert to fraction form
547,257.70/819,136.95 = 389,793.70/x - Step 3: Cross multiply
547,257.70x = 819,136.95 × 389,793.70 - Step 4: Simplify right side
547,257.70x = 319,294,422,547.22 - Step 5: Solve for x
x = 319,294,422,547.22/547,257.70 - Step 6: Final answer
x = 583,444.37
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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.