Finding the Fourth Proportional to 786,487.68, 1,173,989.84 and 674,885.07
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Solution
The fourth proportional to 786,487.68, 1,173,989.84 and 674,885.07 is: 1,007,400.67
Step by Step Solution
- Step 1: Write the proportion equation
786,487.68 : 1,173,989.84 = 674,885.07 : x - Step 2: Convert to fraction form
786,487.68/1,173,989.84 = 674,885.07/x - Step 3: Cross multiply
786,487.68x = 1,173,989.84 × 674,885.07 - Step 4: Simplify right side
786,487.68x = 792,308,211,973.26 - Step 5: Solve for x
x = 792,308,211,973.26/786,487.68 - Step 6: Final answer
x = 1,007,400.67
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.