Finding the Fourth Proportional to 734,944.88, 1,012,123.92 and 661,724.08
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Solution
The fourth proportional to 734,944.88, 1,012,123.92 and 661,724.08 is: 911,288.44
Step by Step Solution
- Step 1: Write the proportion equation
734,944.88 : 1,012,123.92 = 661,724.08 : x - Step 2: Convert to fraction form
734,944.88/1,012,123.92 = 661,724.08/x - Step 3: Cross multiply
734,944.88x = 1,012,123.92 × 661,724.08 - Step 4: Simplify right side
734,944.88x = 669,746,769,807.99 - Step 5: Solve for x
x = 669,746,769,807.99/734,944.88 - Step 6: Final answer
x = 911,288.44
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1.5x scale
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.