Finding the Fourth Proportional to 720,781.93, 994,514.09 and 430,337.08
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Solution
The fourth proportional to 720,781.93, 994,514.09 and 430,337.08 is: 593,766.67
Step by Step Solution
- Step 1: Write the proportion equation
720,781.93 : 994,514.09 = 430,337.08 : x - Step 2: Convert to fraction form
720,781.93/994,514.09 = 430,337.08/x - Step 3: Cross multiply
720,781.93x = 994,514.09 × 430,337.08 - Step 4: Simplify right side
720,781.93x = 427,976,289,509.46 - Step 5: Solve for x
x = 427,976,289,509.46/720,781.93 - Step 6: Final answer
x = 593,766.67
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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.