Finding the Fourth Proportional to 857,437.79, 1,183,311.38 and 475,456.37
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Solution
The fourth proportional to 857,437.79, 1,183,311.38 and 475,456.37 is: 656,155.98
Step by Step Solution
- Step 1: Write the proportion equation
857,437.79 : 1,183,311.38 = 475,456.37 : x - Step 2: Convert to fraction form
857,437.79/1,183,311.38 = 475,456.37/x - Step 3: Cross multiply
857,437.79x = 1,183,311.38 × 475,456.37 - Step 4: Simplify right side
857,437.79x = 562,612,928,586.58 - Step 5: Solve for x
x = 562,612,928,586.58/857,437.79 - Step 6: Final answer
x = 656,155.98
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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.