Finding the Fourth Proportional to 911,808.14, 1,258,299.17 and 498,353.28
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Solution
The fourth proportional to 911,808.14, 1,258,299.17 and 498,353.28 is: 687,729.68
Step by Step Solution
- Step 1: Write the proportion equation
911,808.14 : 1,258,299.17 = 498,353.28 : x - Step 2: Convert to fraction form
911,808.14/1,258,299.17 = 498,353.28/x - Step 3: Cross multiply
911,808.14x = 1,258,299.17 × 498,353.28 - Step 4: Simplify right side
911,808.14x = 627,077,516,099.01 - Step 5: Solve for x
x = 627,077,516,099.01/911,808.14 - Step 6: Final answer
x = 687,729.68
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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.