Finding the Fourth Proportional to 903,286.19, 1,246,445.12 and 521,435.99
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Solution
The fourth proportional to 903,286.19, 1,246,445.12 and 521,435.99 is: 719,529.81
Step by Step Solution
- Step 1: Write the proportion equation
903,286.19 : 1,246,445.12 = 521,435.99 : x - Step 2: Convert to fraction form
903,286.19/1,246,445.12 = 521,435.99/x - Step 3: Cross multiply
903,286.19x = 1,246,445.12 × 521,435.99 - Step 4: Simplify right side
903,286.19x = 649,941,336,288.46 - Step 5: Solve for x
x = 649,941,336,288.46/903,286.19 - Step 6: Final answer
x = 719,529.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.