Finding the Fourth Proportional to 1,231,363.28, 1,699,209.92 and 687,533.49
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Solution
The fourth proportional to 1,231,363.28, 1,699,209.92 and 687,533.49 is: 948,756.35
Step by Step Solution
- Step 1: Write the proportion equation
1,231,363.28 : 1,699,209.92 = 687,533.49 : x - Step 2: Convert to fraction form
1,231,363.28/1,699,209.92 = 687,533.49/x - Step 3: Cross multiply
1,231,363.28x = 1,699,209.92 × 687,533.49 - Step 4: Simplify right side
1,231,363.28x = 1,168,263,728,259.05 - Step 5: Solve for x
x = 1,168,263,728,259.05/1,231,363.28 - Step 6: Final answer
x = 948,756.35
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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.