Finding the Fourth Proportional to 674,725.28, 931,120.08 and 368,803.68
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Solution
The fourth proportional to 674,725.28, 931,120.08 and 368,803.68 is: 508,948.64
Step by Step Solution
- Step 1: Write the proportion equation
674,725.28 : 931,120.08 = 368,803.68 : x - Step 2: Convert to fraction form
674,725.28/931,120.08 = 368,803.68/x - Step 3: Cross multiply
674,725.28x = 931,120.08 × 368,803.68 - Step 4: Simplify right side
674,725.28x = 343,400,512,025.89 - Step 5: Solve for x
x = 343,400,512,025.89/674,725.28 - Step 6: Final answer
x = 508,948.64
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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.