Finding the Fourth Proportional to 1,422,679.49, 2,134,130.63 and 411,816.63
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Solution
The fourth proportional to 1,422,679.49, 2,134,130.63 and 411,816.63 is: 617,757.19
Step by Step Solution
- Step 1: Write the proportion equation
1,422,679.49 : 2,134,130.63 = 411,816.63 : x - Step 2: Convert to fraction form
1,422,679.49/2,134,130.63 = 411,816.63/x - Step 3: Cross multiply
1,422,679.49x = 2,134,130.63 × 411,816.63 - Step 4: Simplify right side
1,422,679.49x = 878,870,489,970.28 - Step 5: Solve for x
x = 878,870,489,970.28/1,422,679.49 - Step 6: Final answer
x = 617,757.19
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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.