Finding the Fourth Proportional to 878,299.74, 1,316,432.79 and 403,989.66
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Solution
The fourth proportional to 878,299.74, 1,316,432.79 and 403,989.66 is: 605,516.79
Step by Step Solution
- Step 1: Write the proportion equation
878,299.74 : 1,316,432.79 = 403,989.66 : x - Step 2: Convert to fraction form
878,299.74/1,316,432.79 = 403,989.66/x - Step 3: Cross multiply
878,299.74x = 1,316,432.79 × 403,989.66 - Step 4: Simplify right side
878,299.74x = 531,825,235,244.95 - Step 5: Solve for x
x = 531,825,235,244.95/878,299.74 - Step 6: Final answer
x = 605,516.79
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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.