Finding the Fourth Proportional to 1,767,174.76, 2,440,139.34 and 1,440,539.02
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Solution
The fourth proportional to 1,767,174.76, 2,440,139.34 and 1,440,539.02 is: 1,989,116.19
Step by Step Solution
- Step 1: Write the proportion equation
1,767,174.76 : 2,440,139.34 = 1,440,539.02 : x - Step 2: Convert to fraction form
1,767,174.76/2,440,139.34 = 1,440,539.02/x - Step 3: Cross multiply
1,767,174.76x = 2,440,139.34 × 1,440,539.02 - Step 4: Simplify right side
1,767,174.76x = 3,515,115,933,507.05 - Step 5: Solve for x
x = 3,515,115,933,507.05/1,767,174.76 - Step 6: Final answer
x = 1,989,116.19
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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.