Finding the Fourth Proportional to 947,331.90, 1,307,327.21 and 517,611.99
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Solution
The fourth proportional to 947,331.90, 1,307,327.21 and 517,611.99 is: 714,309.56
Step by Step Solution
- Step 1: Write the proportion equation
947,331.90 : 1,307,327.21 = 517,611.99 : x - Step 2: Convert to fraction form
947,331.90/1,307,327.21 = 517,611.99/x - Step 3: Cross multiply
947,331.90x = 1,307,327.21 × 517,611.99 - Step 4: Simplify right side
947,331.90x = 676,688,236,161.19 - Step 5: Solve for x
x = 676,688,236,161.19/947,331.90 - Step 6: Final answer
x = 714,309.56
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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.