Finding the Fourth Proportional to 905,439.53, 1,248,258.00 and 722,299.69
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Solution
The fourth proportional to 905,439.53, 1,248,258.00 and 722,299.69 is: 995,777.56
Step by Step Solution
- Step 1: Write the proportion equation
905,439.53 : 1,248,258.00 = 722,299.69 : x - Step 2: Convert to fraction form
905,439.53/1,248,258.00 = 722,299.69/x - Step 3: Cross multiply
905,439.53x = 1,248,258.00 × 722,299.69 - Step 4: Simplify right side
905,439.53x = 901,616,366,028.00 - Step 5: Solve for x
x = 901,616,366,028.00/905,439.53 - Step 6: Final answer
x = 995,777.56
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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.