Finding the Fourth Proportional to 605,261.80, 907,892.70 and 487,163.80
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Solution
The fourth proportional to 605,261.80, 907,892.70 and 487,163.80 is: 730,745.70
Step by Step Solution
- Step 1: Write the proportion equation
605,261.80 : 907,892.70 = 487,163.80 : x - Step 2: Convert to fraction form
605,261.80/907,892.70 = 487,163.80/x - Step 3: Cross multiply
605,261.80x = 907,892.70 × 487,163.80 - Step 4: Simplify right side
605,261.80x = 442,292,457,724.26 - Step 5: Solve for x
x = 442,292,457,724.26/605,261.80 - Step 6: Final answer
x = 730,745.70
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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.