Finding the Fourth Proportional to 980,639.84, 1,353,251.67 and 545,055.05
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Solution
The fourth proportional to 980,639.84, 1,353,251.67 and 545,055.05 is: 752,158.57
Step by Step Solution
- Step 1: Write the proportion equation
980,639.84 : 1,353,251.67 = 545,055.05 : x - Step 2: Convert to fraction form
980,639.84/1,353,251.67 = 545,055.05/x - Step 3: Cross multiply
980,639.84x = 1,353,251.67 × 545,055.05 - Step 4: Simplify right side
980,639.84x = 737,596,656,654.43 - Step 5: Solve for x
x = 737,596,656,654.43/980,639.84 - Step 6: Final answer
x = 752,158.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.