Finding the Fourth Proportional to 2,220,412.30, 3,064,178.21 and 1,201,817.05
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Solution
The fourth proportional to 2,220,412.30, 3,064,178.21 and 1,201,817.05 is: 1,658,512.52
Step by Step Solution
- Step 1: Write the proportion equation
2,220,412.30 : 3,064,178.21 = 1,201,817.05 : x - Step 2: Convert to fraction form
2,220,412.30/3,064,178.21 = 1,201,817.05/x - Step 3: Cross multiply
2,220,412.30x = 3,064,178.21 × 1,201,817.05 - Step 4: Simplify right side
2,220,412.30x = 3,682,581,603,346.95 - Step 5: Solve for x
x = 3,682,581,603,346.95/2,220,412.30 - Step 6: Final answer
x = 1,658,512.52
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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.