Finding the Fourth Proportional to 4,879,036.40, 7,318,000.74 and 1,285,084.60
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Solution
The fourth proportional to 4,879,036.40, 7,318,000.74 and 1,285,084.60 is: 1,927,481.02
Step by Step Solution
- Step 1: Write the proportion equation
4,879,036.40 : 7,318,000.74 = 1,285,084.60 : x - Step 2: Convert to fraction form
4,879,036.40/7,318,000.74 = 1,285,084.60/x - Step 3: Cross multiply
4,879,036.40x = 7,318,000.74 × 1,285,084.60 - Step 4: Simplify right side
4,879,036.40x = 9,404,250,053,762.61 - Step 5: Solve for x
x = 9,404,250,053,762.61/4,879,036.40 - Step 6: Final answer
x = 1,927,481.02
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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.