Finding the Fourth Proportional to 1,276,698.05, 1,761,842.88 and 703,747.79
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Solution
The fourth proportional to 1,276,698.05, 1,761,842.88 and 703,747.79 is: 971,171.71
Step by Step Solution
- Step 1: Write the proportion equation
1,276,698.05 : 1,761,842.88 = 703,747.79 : x - Step 2: Convert to fraction form
1,276,698.05/1,761,842.88 = 703,747.79/x - Step 3: Cross multiply
1,276,698.05x = 1,761,842.88 × 703,747.79 - Step 4: Simplify right side
1,276,698.05x = 1,239,893,033,127.24 - Step 5: Solve for x
x = 1,239,893,033,127.24/1,276,698.05 - Step 6: Final answer
x = 971,171.71
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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.