Finding the Fourth Proportional to 617,858.70, 925,115.43 and 437,201.57
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Solution
The fourth proportional to 617,858.70, 925,115.43 and 437,201.57 is: 654,618.80
Step by Step Solution
- Step 1: Write the proportion equation
617,858.70 : 925,115.43 = 437,201.57 : x - Step 2: Convert to fraction form
617,858.70/925,115.43 = 437,201.57/x - Step 3: Cross multiply
617,858.70x = 925,115.43 × 437,201.57 - Step 4: Simplify right side
617,858.70x = 404,461,918,427.23 - Step 5: Solve for x
x = 404,461,918,427.23/617,858.70 - Step 6: Final answer
x = 654,618.80
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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.