Finding the Fourth Proportional to 775,312.91, 1,163,688.99 and 396,504.32
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Solution
The fourth proportional to 775,312.91, 1,163,688.99 and 396,504.32 is: 595,124.50
Step by Step Solution
- Step 1: Write the proportion equation
775,312.91 : 1,163,688.99 = 396,504.32 : x - Step 2: Convert to fraction form
775,312.91/1,163,688.99 = 396,504.32/x - Step 3: Cross multiply
775,312.91x = 1,163,688.99 × 396,504.32 - Step 4: Simplify right side
775,312.91x = 461,407,711,671.44 - Step 5: Solve for x
x = 461,407,711,671.44/775,312.91 - Step 6: Final answer
x = 595,124.50
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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.