Finding the Fourth Proportional to 507,992.78, 761,892.11 and 255,203.09
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Solution
The fourth proportional to 507,992.78, 761,892.11 and 255,203.09 is: 382,755.87
Step by Step Solution
- Step 1: Write the proportion equation
507,992.78 : 761,892.11 = 255,203.09 : x - Step 2: Convert to fraction form
507,992.78/761,892.11 = 255,203.09/x - Step 3: Cross multiply
507,992.78x = 761,892.11 × 255,203.09 - Step 4: Simplify right side
507,992.78x = 194,437,219,447.25 - Step 5: Solve for x
x = 194,437,219,447.25/507,992.78 - Step 6: Final answer
x = 382,755.87
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1.5x scale
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.