Finding the Fourth Proportional to 812,783.97, 1,122,184.33 and 506,983.05
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Solution
The fourth proportional to 812,783.97, 1,122,184.33 and 506,983.05 is: 699,974.97
Step by Step Solution
- Step 1: Write the proportion equation
812,783.97 : 1,122,184.33 = 506,983.05 : x - Step 2: Convert to fraction form
812,783.97/1,122,184.33 = 506,983.05/x - Step 3: Cross multiply
812,783.97x = 1,122,184.33 × 506,983.05 - Step 4: Simplify right side
812,783.97x = 568,928,433,018.15 - Step 5: Solve for x
x = 568,928,433,018.15/812,783.97 - Step 6: Final answer
x = 699,974.97
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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.