Finding the Fourth Proportional to 2,181,690.28, 3,010,703.86 and 1,201,610.49
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Solution
The fourth proportional to 2,181,690.28, 3,010,703.86 and 1,201,610.49 is: 1,658,206.65
Step by Step Solution
- Step 1: Write the proportion equation
2,181,690.28 : 3,010,703.86 = 1,201,610.49 : x - Step 2: Convert to fraction form
2,181,690.28/3,010,703.86 = 1,201,610.49/x - Step 3: Cross multiply
2,181,690.28x = 3,010,703.86 × 1,201,610.49 - Step 4: Simplify right side
2,181,690.28x = 3,617,693,340,459.49 - Step 5: Solve for x
x = 3,617,693,340,459.49/2,181,690.28 - Step 6: Final answer
x = 1,658,206.65
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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.