Finding the Fourth Proportional to 840,620.08, 1,261,787.84 and 615,311.28
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Solution
The fourth proportional to 840,620.08, 1,261,787.84 and 615,311.28 is: 923,594.75
Step by Step Solution
- Step 1: Write the proportion equation
840,620.08 : 1,261,787.84 = 615,311.28 : x - Step 2: Convert to fraction form
840,620.08/1,261,787.84 = 615,311.28/x - Step 3: Cross multiply
840,620.08x = 1,261,787.84 × 615,311.28 - Step 4: Simplify right side
840,620.08x = 776,392,290,918.84 - Step 5: Solve for x
x = 776,392,290,918.84/840,620.08 - Step 6: Final answer
x = 923,594.75
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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.