Finding the Fourth Proportional to 861,912.67, 1,292,420.03 and 321,724.71
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Solution
The fourth proportional to 861,912.67, 1,292,420.03 and 321,724.71 is: 482,419.48
Step by Step Solution
- Step 1: Write the proportion equation
861,912.67 : 1,292,420.03 = 321,724.71 : x - Step 2: Convert to fraction form
861,912.67/1,292,420.03 = 321,724.71/x - Step 3: Cross multiply
861,912.67x = 1,292,420.03 × 321,724.71 - Step 4: Simplify right side
861,912.67x = 415,803,459,349.94 - Step 5: Solve for x
x = 415,803,459,349.94/861,912.67 - Step 6: Final answer
x = 482,419.48
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.