Finding the Fourth Proportional to 820,303.80, 1,230,455.70 and 221,263.80
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Solution
The fourth proportional to 820,303.80, 1,230,455.70 and 221,263.80 is: 331,895.70
Step by Step Solution
- Step 1: Write the proportion equation
820,303.80 : 1,230,455.70 = 221,263.80 : x - Step 2: Convert to fraction form
820,303.80/1,230,455.70 = 221,263.80/x - Step 3: Cross multiply
820,303.80x = 1,230,455.70 × 221,263.80 - Step 4: Simplify right side
820,303.80x = 272,255,303,913.66 - Step 5: Solve for x
x = 272,255,303,913.66/820,303.80 - Step 6: Final answer
x = 331,895.70
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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.