Finding the Fourth Proportional to 1,689,783.10, 2,534,674.03 and 1,122,272.13
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Solution
The fourth proportional to 1,689,783.10, 2,534,674.03 and 1,122,272.13 is: 1,683,407.78
Step by Step Solution
- Step 1: Write the proportion equation
1,689,783.10 : 2,534,674.03 = 1,122,272.13 : x - Step 2: Convert to fraction form
1,689,783.10/2,534,674.03 = 1,122,272.13/x - Step 3: Cross multiply
1,689,783.10x = 2,534,674.03 × 1,122,272.13 - Step 4: Simplify right side
1,689,783.10x = 2,844,594,022,503.78 - Step 5: Solve for x
x = 2,844,594,022,503.78/1,689,783.10 - Step 6: Final answer
x = 1,683,407.78
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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.