Finding the Fourth Proportional to 420,406.44, 580,173.12 and 229,432.14
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Solution
The fourth proportional to 420,406.44, 580,173.12 and 229,432.14 is: 316,623.03
Step by Step Solution
- Step 1: Write the proportion equation
420,406.44 : 580,173.12 = 229,432.14 : x - Step 2: Convert to fraction form
420,406.44/580,173.12 = 229,432.14/x - Step 3: Cross multiply
420,406.44x = 580,173.12 × 229,432.14 - Step 4: Simplify right side
420,406.44x = 133,110,360,492.08 - Step 5: Solve for x
x = 133,110,360,492.08/420,406.44 - Step 6: Final answer
x = 316,623.03
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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.