Finding the Fourth Proportional to 520,787.13, 781,180.70 and 494,193.21
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Solution
The fourth proportional to 520,787.13, 781,180.70 and 494,193.21 is: 741,289.82
Step by Step Solution
- Step 1: Write the proportion equation
520,787.13 : 781,180.70 = 494,193.21 : x - Step 2: Convert to fraction form
520,787.13/781,180.70 = 494,193.21/x - Step 3: Cross multiply
520,787.13x = 781,180.70 × 494,193.21 - Step 4: Simplify right side
520,787.13x = 386,054,195,252.08 - Step 5: Solve for x
x = 386,054,195,252.08/520,787.13 - Step 6: Final answer
x = 741,289.82
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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.