Finding the Fourth Proportional to 578,135.22, 867,334.32 and 311,889.84
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Solution
The fourth proportional to 578,135.22, 867,334.32 and 311,889.84 is: 467,905.70
Step by Step Solution
- Step 1: Write the proportion equation
578,135.22 : 867,334.32 = 311,889.84 : x - Step 2: Convert to fraction form
578,135.22/867,334.32 = 311,889.84/x - Step 3: Cross multiply
578,135.22x = 867,334.32 × 311,889.84 - Step 4: Simplify right side
578,135.22x = 270,512,762,291.31 - Step 5: Solve for x
x = 270,512,762,291.31/578,135.22 - Step 6: Final answer
x = 467,905.70
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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.