Finding the Fourth Proportional to 700,318.90, 966,427.36 and 394,394.05
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Solution
The fourth proportional to 700,318.90, 966,427.36 and 394,394.05 is: 544,256.62
Step by Step Solution
- Step 1: Write the proportion equation
700,318.90 : 966,427.36 = 394,394.05 : x - Step 2: Convert to fraction form
700,318.90/966,427.36 = 394,394.05/x - Step 3: Cross multiply
700,318.90x = 966,427.36 × 394,394.05 - Step 4: Simplify right side
700,318.90x = 381,153,200,541.21 - Step 5: Solve for x
x = 381,153,200,541.21/700,318.90 - Step 6: Final answer
x = 544,256.62
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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.