Finding the Fourth Proportional to 668,310.06, 922,182.90 and 381,848.70
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Solution
The fourth proportional to 668,310.06, 922,182.90 and 381,848.70 is: 526,902.65
Step by Step Solution
- Step 1: Write the proportion equation
668,310.06 : 922,182.90 = 381,848.70 : x - Step 2: Convert to fraction form
668,310.06/922,182.90 = 381,848.70/x - Step 3: Cross multiply
668,310.06x = 922,182.90 × 381,848.70 - Step 4: Simplify right side
668,310.06x = 352,134,341,527.23 - Step 5: Solve for x
x = 352,134,341,527.23/668,310.06 - Step 6: Final answer
x = 526,902.65
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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.