Finding the Fourth Proportional to 553,027.98, 763,236.18 and 338,311.05
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Solution
The fourth proportional to 553,027.98, 763,236.18 and 338,311.05 is: 466,904.47
Step by Step Solution
- Step 1: Write the proportion equation
553,027.98 : 763,236.18 = 338,311.05 : x - Step 2: Convert to fraction form
553,027.98/763,236.18 = 338,311.05/x - Step 3: Cross multiply
553,027.98x = 763,236.18 × 338,311.05 - Step 4: Simplify right side
553,027.98x = 258,211,233,453.79 - Step 5: Solve for x
x = 258,211,233,453.79/553,027.98 - Step 6: Final answer
x = 466,904.47
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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.