Finding the Fourth Proportional to 659,621.28, 910,279.68 and 357,817.44
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Solution
The fourth proportional to 659,621.28, 910,279.68 and 357,817.44 is: 493,789.32
Step by Step Solution
- Step 1: Write the proportion equation
659,621.28 : 910,279.68 = 357,817.44 : x - Step 2: Convert to fraction form
659,621.28/910,279.68 = 357,817.44/x - Step 3: Cross multiply
659,621.28x = 910,279.68 × 357,817.44 - Step 4: Simplify right side
659,621.28x = 325,713,944,781.62 - Step 5: Solve for x
x = 325,713,944,781.62/659,621.28 - Step 6: Final answer
x = 493,789.32
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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.