Finding the Fourth Proportional to 857,237.87, 1,285,693.00 and 430,655.26
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Solution
The fourth proportional to 857,237.87, 1,285,693.00 and 430,655.26 is: 645,900.60
Step by Step Solution
- Step 1: Write the proportion equation
857,237.87 : 1,285,693.00 = 430,655.26 : x - Step 2: Convert to fraction form
857,237.87/1,285,693.00 = 430,655.26/x - Step 3: Cross multiply
857,237.87x = 1,285,693.00 × 430,655.26 - Step 4: Simplify right side
857,237.87x = 553,690,453,939.31 - Step 5: Solve for x
x = 553,690,453,939.31/857,237.87 - Step 6: Final answer
x = 645,900.60
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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.