Finding the Fourth Proportional to 919,987.05, 1,269,553.86 and 512,078.43
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Solution
The fourth proportional to 919,987.05, 1,269,553.86 and 512,078.43 is: 706,652.50
Step by Step Solution
- Step 1: Write the proportion equation
919,987.05 : 1,269,553.86 = 512,078.43 : x - Step 2: Convert to fraction form
919,987.05/1,269,553.86 = 512,078.43/x - Step 3: Cross multiply
919,987.05x = 1,269,553.86 × 512,078.43 - Step 4: Simplify right side
919,987.05x = 650,111,147,429.24 - Step 5: Solve for x
x = 650,111,147,429.24/919,987.05 - Step 6: Final answer
x = 706,652.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.