Finding the Fourth Proportional to 5,266,919.40, 7,265,438.58 and 4,287,911.55
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Solution
The fourth proportional to 5,266,919.40, 7,265,438.58 and 4,287,911.55 is: 5,914,948.69
Step by Step Solution
- Step 1: Write the proportion equation
5,266,919.40 : 7,265,438.58 = 4,287,911.55 : x - Step 2: Convert to fraction form
5,266,919.40/7,265,438.58 = 4,287,911.55/x - Step 3: Cross multiply
5,266,919.40x = 7,265,438.58 × 4,287,911.55 - Step 4: Simplify right side
5,266,919.40x = 31,153,558,002,997.60 - Step 5: Solve for x
x = 31,153,558,002,997.60/5,266,919.40 - Step 6: Final answer
x = 5,914,948.69
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1.5x scale
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.