Finding the Fourth Proportional to 539,115.20, 808,672.80 and 329,163.20
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Solution
The fourth proportional to 539,115.20, 808,672.80 and 329,163.20 is: 493,744.80
Step by Step Solution
- Step 1: Write the proportion equation
539,115.20 : 808,672.80 = 329,163.20 : x - Step 2: Convert to fraction form
539,115.20/808,672.80 = 329,163.20/x - Step 3: Cross multiply
539,115.20x = 808,672.80 × 329,163.20 - Step 4: Simplify right side
539,115.20x = 266,185,326,600.96 - Step 5: Solve for x
x = 266,185,326,600.96/539,115.20 - Step 6: Final answer
x = 493,744.80
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.