Finding the Fourth Proportional to 828,183.03, 1,242,938.82 and 428,937.98
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Solution
The fourth proportional to 828,183.03, 1,242,938.82 and 428,937.98 is: 643,751.02
Step by Step Solution
- Step 1: Write the proportion equation
828,183.03 : 1,242,938.82 = 428,937.98 : x - Step 2: Convert to fraction form
828,183.03/1,242,938.82 = 428,937.98/x - Step 3: Cross multiply
828,183.03x = 1,242,938.82 × 428,937.98 - Step 4: Simplify right side
828,183.03x = 533,143,669,099.74 - Step 5: Solve for x
x = 533,143,669,099.74/828,183.03 - Step 6: Final answer
x = 643,751.02
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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.