Finding the Fourth Proportional to 720,780.93, 994,512.71 and 430,336.08
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Solution
The fourth proportional to 720,780.93, 994,512.71 and 430,336.08 is: 593,765.30
Step by Step Solution
- Step 1: Write the proportion equation
720,780.93 : 994,512.71 = 430,336.08 : x - Step 2: Convert to fraction form
720,780.93/994,512.71 = 430,336.08/x - Step 3: Cross multiply
720,780.93x = 994,512.71 × 430,336.08 - Step 4: Simplify right side
720,780.93x = 427,974,702,207.42 - Step 5: Solve for x
x = 427,974,702,207.42/720,780.93 - Step 6: Final answer
x = 593,765.30
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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.