Finding the Fourth Proportional to 791,289.99, 1,091,978.70 and 428,723.04
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Solution
The fourth proportional to 791,289.99, 1,091,978.70 and 428,723.04 is: 591,636.99
Step by Step Solution
- Step 1: Write the proportion equation
791,289.99 : 1,091,978.70 = 428,723.04 : x - Step 2: Convert to fraction form
791,289.99/1,091,978.70 = 428,723.04/x - Step 3: Cross multiply
791,289.99x = 1,091,978.70 × 428,723.04 - Step 4: Simplify right side
791,289.99x = 468,156,427,879.25 - Step 5: Solve for x
x = 468,156,427,879.25/791,289.99 - Step 6: Final answer
x = 591,636.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.