Finding the Fourth Proportional to 679,107.81, 1,018,759.50 and 205,830.03
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Solution
The fourth proportional to 679,107.81, 1,018,759.50 and 205,830.03 is: 308,774.68
Step by Step Solution
- Step 1: Write the proportion equation
679,107.81 : 1,018,759.50 = 205,830.03 : x - Step 2: Convert to fraction form
679,107.81/1,018,759.50 = 205,830.03/x - Step 3: Cross multiply
679,107.81x = 1,018,759.50 × 205,830.03 - Step 4: Simplify right side
679,107.81x = 209,691,298,447.79 - Step 5: Solve for x
x = 209,691,298,447.79/679,107.81 - Step 6: Final answer
x = 308,774.68
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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.