Finding the Fourth Proportional to 432,201.36, 595,724.01 and 288,909.12
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Solution
The fourth proportional to 432,201.36, 595,724.01 and 288,909.12 is: 398,217.39
Step by Step Solution
- Step 1: Write the proportion equation
432,201.36 : 595,724.01 = 288,909.12 : x - Step 2: Convert to fraction form
432,201.36/595,724.01 = 288,909.12/x - Step 3: Cross multiply
432,201.36x = 595,724.01 × 288,909.12 - Step 4: Simplify right side
432,201.36x = 172,110,099,491.97 - Step 5: Solve for x
x = 172,110,099,491.97/432,201.36 - Step 6: Final answer
x = 398,217.39
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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.