Finding the Fourth Proportional to 440,619.75, 608,058.90 and 239,415.75
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Solution
The fourth proportional to 440,619.75, 608,058.90 and 239,415.75 is: 330,395.72
Step by Step Solution
- Step 1: Write the proportion equation
440,619.75 : 608,058.90 = 239,415.75 : x - Step 2: Convert to fraction form
440,619.75/608,058.90 = 239,415.75/x - Step 3: Cross multiply
440,619.75x = 608,058.90 × 239,415.75 - Step 4: Simplify right side
440,619.75x = 145,578,877,587.68 - Step 5: Solve for x
x = 145,578,877,587.68/440,619.75 - Step 6: Final answer
x = 330,395.72
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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.