Finding the Fourth Proportional to 1,643,574.76, 2,268,122.08 and 918,424.28
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Solution
The fourth proportional to 1,643,574.76, 2,268,122.08 and 918,424.28 is: 1,267,419.31
Step by Step Solution
- Step 1: Write the proportion equation
1,643,574.76 : 2,268,122.08 = 918,424.28 : x - Step 2: Convert to fraction form
1,643,574.76/2,268,122.08 = 918,424.28/x - Step 3: Cross multiply
1,643,574.76x = 2,268,122.08 × 918,424.28 - Step 4: Simplify right side
1,643,574.76x = 2,083,098,388,276.10 - Step 5: Solve for x
x = 2,083,098,388,276.10/1,643,574.76 - Step 6: Final answer
x = 1,267,419.31
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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.