Finding the Fourth Proportional to 403,034.75, 555,951.74 and 257,787.54
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Solution
The fourth proportional to 403,034.75, 555,951.74 and 257,787.54 is: 355,595.71
Step by Step Solution
- Step 1: Write the proportion equation
403,034.75 : 555,951.74 = 257,787.54 : x - Step 2: Convert to fraction form
403,034.75/555,951.74 = 257,787.54/x - Step 3: Cross multiply
403,034.75x = 555,951.74 × 257,787.54 - Step 4: Simplify right side
403,034.75x = 143,317,427,344.62 - Step 5: Solve for x
x = 143,317,427,344.62/403,034.75 - Step 6: Final answer
x = 355,595.71
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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.