Finding the Fourth Proportional to 859,783.18, 1,287,708.06 and 410,819.62
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Solution
The fourth proportional to 859,783.18, 1,287,708.06 and 410,819.62 is: 615,289.70
Step by Step Solution
- Step 1: Write the proportion equation
859,783.18 : 1,287,708.06 = 410,819.62 : x - Step 2: Convert to fraction form
859,783.18/1,287,708.06 = 410,819.62/x - Step 3: Cross multiply
859,783.18x = 1,287,708.06 × 410,819.62 - Step 4: Simplify right side
859,783.18x = 529,015,735,880.14 - Step 5: Solve for x
x = 529,015,735,880.14/859,783.18 - Step 6: Final answer
x = 615,289.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.