Finding the Fourth Proportional to 480,291.36, 720,437.05 and 180,839.12
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Solution
The fourth proportional to 480,291.36, 720,437.05 and 180,839.12 is: 271,258.68
Step by Step Solution
- Step 1: Write the proportion equation
480,291.36 : 720,437.05 = 180,839.12 : x - Step 2: Convert to fraction form
480,291.36/720,437.05 = 180,839.12/x - Step 3: Cross multiply
480,291.36x = 720,437.05 × 180,839.12 - Step 4: Simplify right side
480,291.36x = 130,283,198,761.26 - Step 5: Solve for x
x = 130,283,198,761.26/480,291.36 - Step 6: Final answer
x = 271,258.68
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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.