Finding the Fourth Proportional to 1,486,426.14, 2,229,723.99 and 421,384.50
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Solution
The fourth proportional to 1,486,426.14, 2,229,723.99 and 421,384.50 is: 632,100.78
Step by Step Solution
- Step 1: Write the proportion equation
1,486,426.14 : 2,229,723.99 = 421,384.50 : x - Step 2: Convert to fraction form
1,486,426.14/2,229,723.99 = 421,384.50/x - Step 3: Cross multiply
1,486,426.14x = 2,229,723.99 × 421,384.50 - Step 4: Simplify right side
1,486,426.14x = 939,571,128,664.16 - Step 5: Solve for x
x = 939,571,128,664.16/1,486,426.14 - Step 6: Final answer
x = 632,100.78
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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.