Finding the Fourth Proportional to 615,183.20, 921,025.20 and 474,048.80
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Solution
The fourth proportional to 615,183.20, 921,025.20 and 474,048.80 is: 709,724.99
Step by Step Solution
- Step 1: Write the proportion equation
615,183.20 : 921,025.20 = 474,048.80 : x - Step 2: Convert to fraction form
615,183.20/921,025.20 = 474,048.80/x - Step 3: Cross multiply
615,183.20x = 921,025.20 × 474,048.80 - Step 4: Simplify right side
615,183.20x = 436,610,890,829.76 - Step 5: Solve for x
x = 436,610,890,829.76/615,183.20 - Step 6: Final answer
x = 709,724.99
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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.