Finding the Fourth Proportional to 391,737.04, 587,605.75 and 258,586.18
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Solution
The fourth proportional to 391,737.04, 587,605.75 and 258,586.18 is: 387,879.39
Step by Step Solution
- Step 1: Write the proportion equation
391,737.04 : 587,605.75 = 258,586.18 : x - Step 2: Convert to fraction form
391,737.04/587,605.75 = 258,586.18/x - Step 3: Cross multiply
391,737.04x = 587,605.75 × 258,586.18 - Step 4: Simplify right side
391,737.04x = 151,946,724,123.06 - Step 5: Solve for x
x = 151,946,724,123.06/391,737.04 - Step 6: Final answer
x = 387,879.39
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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.