Finding the Fourth Proportional to 947,901.68, 1,308,106.92 and 518,186.96
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Solution
The fourth proportional to 947,901.68, 1,308,106.92 and 518,186.96 is: 715,099.43
Step by Step Solution
- Step 1: Write the proportion equation
947,901.68 : 1,308,106.92 = 518,186.96 : x - Step 2: Convert to fraction form
947,901.68/1,308,106.92 = 518,186.96/x - Step 3: Cross multiply
947,901.68x = 1,308,106.92 × 518,186.96 - Step 4: Simplify right side
947,901.68x = 677,843,948,229.76 - Step 5: Solve for x
x = 677,843,948,229.76/947,901.68 - Step 6: Final answer
x = 715,099.43
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1.5x scale
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.