Finding the Fourth Proportional to 572,721.96, 790,261.41 and 331,027.08
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Solution
The fourth proportional to 572,721.96, 790,261.41 and 331,027.08 is: 456,762.52
Step by Step Solution
- Step 1: Write the proportion equation
572,721.96 : 790,261.41 = 331,027.08 : x - Step 2: Convert to fraction form
572,721.96/790,261.41 = 331,027.08/x - Step 3: Cross multiply
572,721.96x = 790,261.41 × 331,027.08 - Step 4: Simplify right side
572,721.96x = 261,597,926,988.98 - Step 5: Solve for x
x = 261,597,926,988.98/572,721.96 - Step 6: Final answer
x = 456,762.52
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1.5x scale
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.