Finding the Fourth Proportional to 1,774,420.21, 2,449,517.12 and 1,039,272.31
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Solution
The fourth proportional to 1,774,420.21, 2,449,517.12 and 1,039,272.31 is: 1,434,674.44
Step by Step Solution
- Step 1: Write the proportion equation
1,774,420.21 : 2,449,517.12 = 1,039,272.31 : x - Step 2: Convert to fraction form
1,774,420.21/2,449,517.12 = 1,039,272.31/x - Step 3: Cross multiply
1,774,420.21x = 2,449,517.12 × 1,039,272.31 - Step 4: Simplify right side
1,774,420.21x = 2,545,715,315,686.95 - Step 5: Solve for x
x = 2,545,715,315,686.95/1,774,420.21 - Step 6: Final answer
x = 1,434,674.44
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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.