Finding the Fourth Proportional to 828,378.68, 1,242,422.19 and 221,174.53
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Solution
The fourth proportional to 828,378.68, 1,242,422.19 and 221,174.53 is: 331,722.85
Step by Step Solution
- Step 1: Write the proportion equation
828,378.68 : 1,242,422.19 = 221,174.53 : x - Step 2: Convert to fraction form
828,378.68/1,242,422.19 = 221,174.53/x - Step 3: Cross multiply
828,378.68x = 1,242,422.19 × 221,174.53 - Step 4: Simplify right side
828,378.68x = 274,792,137,722.71 - Step 5: Solve for x
x = 274,792,137,722.71/828,378.68 - Step 6: Final answer
x = 331,722.85
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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.