Finding the Fourth Proportional to 2,557,628.19, 3,529,612.44 and 1,396,143.36
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Solution
The fourth proportional to 2,557,628.19, 3,529,612.44 and 1,396,143.36 is: 1,926,724.53
Step by Step Solution
- Step 1: Write the proportion equation
2,557,628.19 : 3,529,612.44 = 1,396,143.36 : x - Step 2: Convert to fraction form
2,557,628.19/3,529,612.44 = 1,396,143.36/x - Step 3: Cross multiply
2,557,628.19x = 3,529,612.44 × 1,396,143.36 - Step 4: Simplify right side
2,557,628.19x = 4,927,844,971,479.40 - Step 5: Solve for x
x = 4,927,844,971,479.40/2,557,628.19 - Step 6: Final answer
x = 1,926,724.53
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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.