Finding the Fourth Proportional to 4,429,171.80, 6,643,757.70 and 2,189,683.80
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Solution
The fourth proportional to 4,429,171.80, 6,643,757.70 and 2,189,683.80 is: 3,284,525.70
Step by Step Solution
- Step 1: Write the proportion equation
4,429,171.80 : 6,643,757.70 = 2,189,683.80 : x - Step 2: Convert to fraction form
4,429,171.80/6,643,757.70 = 2,189,683.80/x - Step 3: Cross multiply
4,429,171.80x = 6,643,757.70 × 2,189,683.80 - Step 4: Simplify right side
4,429,171.80x = 14,547,728,606,815.26 - Step 5: Solve for x
x = 14,547,728,606,815.26/4,429,171.80 - Step 6: Final answer
x = 3,284,525.70
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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.