Finding the Fourth Proportional to 1,008,203.80, 1,512,305.70 and 535,811.80
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Solution
The fourth proportional to 1,008,203.80, 1,512,305.70 and 535,811.80 is: 803,717.70
Step by Step Solution
- Step 1: Write the proportion equation
1,008,203.80 : 1,512,305.70 = 535,811.80 : x - Step 2: Convert to fraction form
1,008,203.80/1,512,305.70 = 535,811.80/x - Step 3: Cross multiply
1,008,203.80x = 1,512,305.70 × 535,811.80 - Step 4: Simplify right side
1,008,203.80x = 810,311,239,267.26 - Step 5: Solve for x
x = 810,311,239,267.26/1,008,203.80 - Step 6: Final answer
x = 803,717.70
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1.5x scale
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.