Finding the Fourth Proportional to 698,921.80, 1,048,382.70 and 173,609.80
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Solution
The fourth proportional to 698,921.80, 1,048,382.70 and 173,609.80 is: 260,414.70
Step by Step Solution
- Step 1: Write the proportion equation
698,921.80 : 1,048,382.70 = 173,609.80 : x - Step 2: Convert to fraction form
698,921.80/1,048,382.70 = 173,609.80/x - Step 3: Cross multiply
698,921.80x = 1,048,382.70 × 173,609.80 - Step 4: Simplify right side
698,921.80x = 182,009,510,870.46 - Step 5: Solve for x
x = 182,009,510,870.46/698,921.80 - Step 6: Final answer
x = 260,414.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.