Finding the Fourth Proportional to 1,398,790.70, 2,097,671.97 and 499,989.86
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Solution
The fourth proportional to 1,398,790.70, 2,097,671.97 and 499,989.86 is: 749,801.03
Step by Step Solution
- Step 1: Write the proportion equation
1,398,790.70 : 2,097,671.97 = 499,989.86 : x - Step 2: Convert to fraction form
1,398,790.70/2,097,671.97 = 499,989.86/x - Step 3: Cross multiply
1,398,790.70x = 2,097,671.97 × 499,989.86 - Step 4: Simplify right side
1,398,790.70x = 1,048,814,714,606.22 - Step 5: Solve for x
x = 1,048,814,714,606.22/1,398,790.70 - Step 6: Final answer
x = 749,801.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.