Finding the Fourth Proportional to 2,181,649.96, 3,010,813.69 and 1,201,588.79
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Solution
The fourth proportional to 2,181,649.96, 3,010,813.69 and 1,201,588.79 is: 1,658,267.85
Step by Step Solution
- Step 1: Write the proportion equation
2,181,649.96 : 3,010,813.69 = 1,201,588.79 : x - Step 2: Convert to fraction form
2,181,649.96/3,010,813.69 = 1,201,588.79/x - Step 3: Cross multiply
2,181,649.96x = 3,010,813.69 × 1,201,588.79 - Step 4: Simplify right side
2,181,649.96x = 3,617,759,979,813.30 - Step 5: Solve for x
x = 3,617,759,979,813.30/2,181,649.96 - Step 6: Final answer
x = 1,658,267.85
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1.5x scale
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.