Finding the Fourth Proportional to 530,192.26, 731,643.42 and 288,475.81
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Solution
The fourth proportional to 530,192.26, 731,643.42 and 288,475.81 is: 398,084.70
Step by Step Solution
- Step 1: Write the proportion equation
530,192.26 : 731,643.42 = 288,475.81 : x - Step 2: Convert to fraction form
530,192.26/731,643.42 = 288,475.81/x - Step 3: Cross multiply
530,192.26x = 731,643.42 × 288,475.81 - Step 4: Simplify right side
530,192.26x = 211,061,428,215.67 - Step 5: Solve for x
x = 211,061,428,215.67/530,192.26 - Step 6: Final answer
x = 398,084.70
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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.