Finding the Fourth Proportional to 527,647.24, 728,153.80 and 285,927.70
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Solution
The fourth proportional to 527,647.24, 728,153.80 and 285,927.70 is: 394,580.56
Step by Step Solution
- Step 1: Write the proportion equation
527,647.24 : 728,153.80 = 285,927.70 : x - Step 2: Convert to fraction form
527,647.24/728,153.80 = 285,927.70/x - Step 3: Cross multiply
527,647.24x = 728,153.80 × 285,927.70 - Step 4: Simplify right side
527,647.24x = 208,199,341,280.26 - Step 5: Solve for x
x = 208,199,341,280.26/527,647.24 - Step 6: Final answer
x = 394,580.56
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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.