Finding the Fourth Proportional to 780,690.16, 1,076,936.84 and 474,860.08
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Solution
The fourth proportional to 780,690.16, 1,076,936.84 and 474,860.08 is: 655,054.13
Step by Step Solution
- Step 1: Write the proportion equation
780,690.16 : 1,076,936.84 = 474,860.08 : x - Step 2: Convert to fraction form
780,690.16/1,076,936.84 = 474,860.08/x - Step 3: Cross multiply
780,690.16x = 1,076,936.84 × 474,860.08 - Step 4: Simplify right side
780,690.16x = 511,394,308,930.71 - Step 5: Solve for x
x = 511,394,308,930.71/780,690.16 - Step 6: Final answer
x = 655,054.13
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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.