Finding the Fourth Proportional to 1,276,432.36, 1,761,479.94 and 695,660.20
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Solution
The fourth proportional to 1,276,432.36, 1,761,479.94 and 695,660.20 is: 960,012.87
Step by Step Solution
- Step 1: Write the proportion equation
1,276,432.36 : 1,761,479.94 = 695,660.20 : x - Step 2: Convert to fraction form
1,276,432.36/1,761,479.94 = 695,660.20/x - Step 3: Cross multiply
1,276,432.36x = 1,761,479.94 × 695,660.20 - Step 4: Simplify right side
1,276,432.36x = 1,225,391,487,356.39 - Step 5: Solve for x
x = 1,225,391,487,356.39/1,276,432.36 - Step 6: Final answer
x = 960,012.87
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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.