Finding the Fourth Proportional to 530,132.54, 731,586.09 and 288,416.85
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Solution
The fourth proportional to 530,132.54, 731,586.09 and 288,416.85 is: 398,016.99
Step by Step Solution
- Step 1: Write the proportion equation
530,132.54 : 731,586.09 = 288,416.85 : x - Step 2: Convert to fraction form
530,132.54/731,586.09 = 288,416.85/x - Step 3: Cross multiply
530,132.54x = 731,586.09 × 288,416.85 - Step 4: Simplify right side
530,132.54x = 211,001,755,581.62 - Step 5: Solve for x
x = 211,001,755,581.62/530,132.54 - Step 6: Final answer
x = 398,016.99
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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.