Finding the Fourth Proportional to 1,520,835.64, 2,099,220.42 and 876,686.44
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Solution
The fourth proportional to 1,520,835.64, 2,099,220.42 and 876,686.44 is: 1,210,096.63
Step by Step Solution
- Step 1: Write the proportion equation
1,520,835.64 : 2,099,220.42 = 876,686.44 : x - Step 2: Convert to fraction form
1,520,835.64/2,099,220.42 = 876,686.44/x - Step 3: Cross multiply
1,520,835.64x = 2,099,220.42 × 876,686.44 - Step 4: Simplify right side
1,520,835.64x = 1,840,358,076,785.10 - Step 5: Solve for x
x = 1,840,358,076,785.10/1,520,835.64 - Step 6: Final answer
x = 1,210,096.63
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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.