Finding the Fourth Proportional to 546,879.60, 821,874.60 and 478,450.80
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Solution
The fourth proportional to 546,879.60, 821,874.60 and 478,450.80 is: 719,036.80
Step by Step Solution
- Step 1: Write the proportion equation
546,879.60 : 821,874.60 = 478,450.80 : x - Step 2: Convert to fraction form
546,879.60/821,874.60 = 478,450.80/x - Step 3: Cross multiply
546,879.60x = 821,874.60 × 478,450.80 - Step 4: Simplify right side
546,879.60x = 393,226,559,869.68 - Step 5: Solve for x
x = 393,226,559,869.68/546,879.60 - Step 6: Final answer
x = 719,036.80
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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.