Finding the Fourth Proportional to 530,242.80, 731,493.28 and 315,260.68
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Solution
The fourth proportional to 530,242.80, 731,493.28 and 315,260.68 is: 434,915.98
Step by Step Solution
- Step 1: Write the proportion equation
530,242.80 : 731,493.28 = 315,260.68 : x - Step 2: Convert to fraction form
530,242.80/731,493.28 = 315,260.68/x - Step 3: Cross multiply
530,242.80x = 731,493.28 × 315,260.68 - Step 4: Simplify right side
530,242.80x = 230,611,068,868.23 - Step 5: Solve for x
x = 230,611,068,868.23/530,242.80 - Step 6: Final answer
x = 434,915.98
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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.