Finding the Fourth Proportional to 1,768,228.10, 2,653,724.55 and 821,716.10
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Solution
The fourth proportional to 1,768,228.10, 2,653,724.55 and 821,716.10 is: 1,233,216.57
Step by Step Solution
- Step 1: Write the proportion equation
1,768,228.10 : 2,653,724.55 = 821,716.10 : x - Step 2: Convert to fraction form
1,768,228.10/2,653,724.55 = 821,716.10/x - Step 3: Cross multiply
1,768,228.10x = 2,653,724.55 × 821,716.10 - Step 4: Simplify right side
1,768,228.10x = 2,180,608,187,700.26 - Step 5: Solve for x
x = 2,180,608,187,700.26/1,768,228.10 - Step 6: Final answer
x = 1,233,216.57
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.