Finding the Fourth Proportional to 1,211,563.04, 1,671,968.42 and 667,718.44
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Solution
The fourth proportional to 1,211,563.04, 1,671,968.42 and 667,718.44 is: 921,457.74
Step by Step Solution
- Step 1: Write the proportion equation
1,211,563.04 : 1,671,968.42 = 667,718.44 : x - Step 2: Convert to fraction form
1,211,563.04/1,671,968.42 = 667,718.44/x - Step 3: Cross multiply
1,211,563.04x = 1,671,968.42 × 667,718.44 - Step 4: Simplify right side
1,211,563.04x = 1,116,404,145,131.66 - Step 5: Solve for x
x = 1,116,404,145,131.66/1,211,563.04 - Step 6: Final answer
x = 921,457.74
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.