Finding the Fourth Proportional to 808,613.80, 1,212,920.70 and 493,685.80
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Solution
The fourth proportional to 808,613.80, 1,212,920.70 and 493,685.80 is: 740,528.70
Step by Step Solution
- Step 1: Write the proportion equation
808,613.80 : 1,212,920.70 = 493,685.80 : x - Step 2: Convert to fraction form
808,613.80/1,212,920.70 = 493,685.80/x - Step 3: Cross multiply
808,613.80x = 1,212,920.70 × 493,685.80 - Step 4: Simplify right side
808,613.80x = 598,801,726,116.06 - Step 5: Solve for x
x = 598,801,726,116.06/808,613.80 - Step 6: Final answer
x = 740,528.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.