Finding the Fourth Proportional to 1,203,087.42, 1,660,197.30 and 686,820.96
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Solution
The fourth proportional to 1,203,087.42, 1,660,197.30 and 686,820.96 is: 947,776.77
Step by Step Solution
- Step 1: Write the proportion equation
1,203,087.42 : 1,660,197.30 = 686,820.96 : x - Step 2: Convert to fraction form
1,203,087.42/1,660,197.30 = 686,820.96/x - Step 3: Cross multiply
1,203,087.42x = 1,660,197.30 × 686,820.96 - Step 4: Simplify right side
1,203,087.42x = 1,140,258,303,375.41 - Step 5: Solve for x
x = 1,140,258,303,375.41/1,203,087.42 - Step 6: Final answer
x = 947,776.77
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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.