Finding the Fourth Proportional to 411,408.62, 567,864.59 and 239,367.05
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Solution
The fourth proportional to 411,408.62, 567,864.59 and 239,367.05 is: 330,396.75
Step by Step Solution
- Step 1: Write the proportion equation
411,408.62 : 567,864.59 = 239,367.05 : x - Step 2: Convert to fraction form
411,408.62/567,864.59 = 239,367.05/x - Step 3: Cross multiply
411,408.62x = 567,864.59 × 239,367.05 - Step 4: Simplify right side
411,408.62x = 135,928,071,707.76 - Step 5: Solve for x
x = 135,928,071,707.76/411,408.62 - Step 6: Final answer
x = 330,396.75
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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.