Finding the Fourth Proportional to 853,336.08, 1,177,639.56 and 490,760.24
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Solution
The fourth proportional to 853,336.08, 1,177,639.56 and 490,760.24 is: 677,269.70
Step by Step Solution
- Step 1: Write the proportion equation
853,336.08 : 1,177,639.56 = 490,760.24 : x - Step 2: Convert to fraction form
853,336.08/1,177,639.56 = 490,760.24/x - Step 3: Cross multiply
853,336.08x = 1,177,639.56 × 490,760.24 - Step 4: Simplify right side
853,336.08x = 577,938,667,210.90 - Step 5: Solve for x
x = 577,938,667,210.90/853,336.08 - Step 6: Final answer
x = 677,269.70
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1.5x scale
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.