Finding the Fourth Proportional to 1,209,136.01, 1,810,292.29 and 639,225.68
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Solution
The fourth proportional to 1,209,136.01, 1,810,292.29 and 639,225.68 is: 957,034.86
Step by Step Solution
- Step 1: Write the proportion equation
1,209,136.01 : 1,810,292.29 = 639,225.68 : x - Step 2: Convert to fraction form
1,209,136.01/1,810,292.29 = 639,225.68/x - Step 3: Cross multiply
1,209,136.01x = 1,810,292.29 × 639,225.68 - Step 4: Simplify right side
1,209,136.01x = 1,157,185,309,424.48 - Step 5: Solve for x
x = 1,157,185,309,424.48/1,209,136.01 - Step 6: Final answer
x = 957,034.86
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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.