Finding the Fourth Proportional to 1,284,282.14, 1,772,322.42 and 774,886.10
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Solution
The fourth proportional to 1,284,282.14, 1,772,322.42 and 774,886.10 is: 1,069,350.70
Step by Step Solution
- Step 1: Write the proportion equation
1,284,282.14 : 1,772,322.42 = 774,886.10 : x - Step 2: Convert to fraction form
1,284,282.14/1,772,322.42 = 774,886.10/x - Step 3: Cross multiply
1,284,282.14x = 1,772,322.42 × 774,886.10 - Step 4: Simplify right side
1,284,282.14x = 1,373,348,007,976.36 - Step 5: Solve for x
x = 1,373,348,007,976.36/1,284,282.14 - Step 6: Final answer
x = 1,069,350.70
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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.