Finding the Fourth Proportional to 411,690.60, 617,924.70 and 254,226.60
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Solution
The fourth proportional to 411,690.60, 617,924.70 and 254,226.60 is: 381,579.99
Step by Step Solution
- Step 1: Write the proportion equation
411,690.60 : 617,924.70 = 254,226.60 : x - Step 2: Convert to fraction form
411,690.60/617,924.70 = 254,226.60/x - Step 3: Cross multiply
411,690.60x = 617,924.70 × 254,226.60 - Step 4: Simplify right side
411,690.60x = 157,092,895,537.02 - Step 5: Solve for x
x = 157,092,895,537.02/411,690.60 - Step 6: Final answer
x = 381,579.99
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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.