Finding the Fourth Proportional to 839,109.15, 1,258,787.76 and 306,505.62
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Solution
The fourth proportional to 839,109.15, 1,258,787.76 and 306,505.62 is: 459,803.74
Step by Step Solution
- Step 1: Write the proportion equation
839,109.15 : 1,258,787.76 = 306,505.62 : x - Step 2: Convert to fraction form
839,109.15/1,258,787.76 = 306,505.62/x - Step 3: Cross multiply
839,109.15x = 1,258,787.76 × 306,505.62 - Step 4: Simplify right side
839,109.15x = 385,825,524,263.96 - Step 5: Solve for x
x = 385,825,524,263.96/839,109.15 - Step 6: Final answer
x = 459,803.74
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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.