Finding the Fourth Proportional to 857,811.57, 1,286,777.30 and 352,398.03
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Solution
The fourth proportional to 857,811.57, 1,286,777.30 and 352,398.03 is: 528,621.67
Step by Step Solution
- Step 1: Write the proportion equation
857,811.57 : 1,286,777.30 = 352,398.03 : x - Step 2: Convert to fraction form
857,811.57/1,286,777.30 = 352,398.03/x - Step 3: Cross multiply
857,811.57x = 1,286,777.30 × 352,398.03 - Step 4: Simplify right side
857,811.57x = 453,457,783,806.73 - Step 5: Solve for x
x = 453,457,783,806.73/857,811.57 - Step 6: Final answer
x = 528,621.67
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.