Finding the Fourth Proportional to 2,639,829.20, 3,643,015.86 and 1,722,645.14
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Solution
The fourth proportional to 2,639,829.20, 3,643,015.86 and 1,722,645.14 is: 2,377,283.94
Step by Step Solution
- Step 1: Write the proportion equation
2,639,829.20 : 3,643,015.86 = 1,722,645.14 : x - Step 2: Convert to fraction form
2,639,829.20/3,643,015.86 = 1,722,645.14/x - Step 3: Cross multiply
2,639,829.20x = 3,643,015.86 × 1,722,645.14 - Step 4: Simplify right side
2,639,829.20x = 6,275,623,547,956.84 - Step 5: Solve for x
x = 6,275,623,547,956.84/2,639,829.20 - Step 6: Final answer
x = 2,377,283.94
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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.