Finding the Fourth Proportional to 821,942.97, 1,134,630.54 and 499,756.02
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Solution
The fourth proportional to 821,942.97, 1,134,630.54 and 499,756.02 is: 689,875.65
Step by Step Solution
- Step 1: Write the proportion equation
821,942.97 : 1,134,630.54 = 499,756.02 : x - Step 2: Convert to fraction form
821,942.97/1,134,630.54 = 499,756.02/x - Step 3: Cross multiply
821,942.97x = 1,134,630.54 × 499,756.02 - Step 4: Simplify right side
821,942.97x = 567,038,442,840.85 - Step 5: Solve for x
x = 567,038,442,840.85/821,942.97 - Step 6: Final answer
x = 689,875.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.