Finding the Fourth Proportional to 1,257,920.64, 1,735,905.60 and 684,967.68
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Solution
The fourth proportional to 1,257,920.64, 1,735,905.60 and 684,967.68 is: 945,241.85
Step by Step Solution
- Step 1: Write the proportion equation
1,257,920.64 : 1,735,905.60 = 684,967.68 : x - Step 2: Convert to fraction form
1,257,920.64/1,735,905.60 = 684,967.68/x - Step 3: Cross multiply
1,257,920.64x = 1,735,905.60 × 684,967.68 - Step 4: Simplify right side
1,257,920.64x = 1,189,039,231,531.01 - Step 5: Solve for x
x = 1,189,039,231,531.01/1,257,920.64 - Step 6: Final answer
x = 945,241.85
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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.