Finding the Fourth Proportional to 664,363.20, 916,816.68 and 362,557.20
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Solution
The fourth proportional to 664,363.20, 916,816.68 and 362,557.20 is: 500,326.46
Step by Step Solution
- Step 1: Write the proportion equation
664,363.20 : 916,816.68 = 362,557.20 : x - Step 2: Convert to fraction form
664,363.20/916,816.68 = 362,557.20/x - Step 3: Cross multiply
664,363.20x = 916,816.68 × 362,557.20 - Step 4: Simplify right side
664,363.20x = 332,398,488,414.10 - Step 5: Solve for x
x = 332,398,488,414.10/664,363.20 - Step 6: Final answer
x = 500,326.46
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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.