Finding the Fourth Proportional to 1,420,725.06, 1,960,735.68 and 776,242.08
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Solution
The fourth proportional to 1,420,725.06, 1,960,735.68 and 776,242.08 is: 1,071,287.88
Step by Step Solution
- Step 1: Write the proportion equation
1,420,725.06 : 1,960,735.68 = 776,242.08 : x - Step 2: Convert to fraction form
1,420,725.06/1,960,735.68 = 776,242.08/x - Step 3: Cross multiply
1,420,725.06x = 1,960,735.68 × 776,242.08 - Step 4: Simplify right side
1,420,725.06x = 1,522,005,542,573.41 - Step 5: Solve for x
x = 1,522,005,542,573.41/1,420,725.06 - Step 6: Final answer
x = 1,071,287.88
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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.