Finding the Fourth Proportional to 646,982.20, 970,646.10 and 577,343.80
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Solution
The fourth proportional to 646,982.20, 970,646.10 and 577,343.80 is: 866,169.90
Step by Step Solution
- Step 1: Write the proportion equation
646,982.20 : 970,646.10 = 577,343.80 : x - Step 2: Convert to fraction form
646,982.20/970,646.10 = 577,343.80/x - Step 3: Cross multiply
646,982.20x = 970,646.10 × 577,343.80 - Step 4: Simplify right side
646,982.20x = 560,396,507,829.18 - Step 5: Solve for x
x = 560,396,507,829.18/646,982.20 - Step 6: Final answer
x = 866,169.90
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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.