Finding the Fourth Proportional to 1,276,439.19, 1,761,482.50 and 703,479.21
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Solution
The fourth proportional to 1,276,439.19, 1,761,482.50 and 703,479.21 is: 970,799.34
Step by Step Solution
- Step 1: Write the proportion equation
1,276,439.19 : 1,761,482.50 = 703,479.21 : x - Step 2: Convert to fraction form
1,276,439.19/1,761,482.50 = 703,479.21/x - Step 3: Cross multiply
1,276,439.19x = 1,761,482.50 × 703,479.21 - Step 4: Simplify right side
1,276,439.19x = 1,239,166,317,528.83 - Step 5: Solve for x
x = 1,239,166,317,528.83/1,276,439.19 - Step 6: Final answer
x = 970,799.34
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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.