Finding the Fourth Proportional to 521,138.63, 781,842.71 and 305,179.74
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Solution
The fourth proportional to 521,138.63, 781,842.71 and 305,179.74 is: 457,848.53
Step by Step Solution
- Step 1: Write the proportion equation
521,138.63 : 781,842.71 = 305,179.74 : x - Step 2: Convert to fraction form
521,138.63/781,842.71 = 305,179.74/x - Step 3: Cross multiply
521,138.63x = 781,842.71 × 305,179.74 - Step 4: Simplify right side
521,138.63x = 238,602,551,504.63 - Step 5: Solve for x
x = 238,602,551,504.63/521,138.63 - Step 6: Final answer
x = 457,848.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.