Finding the Fourth Proportional to 4,256,319.84, 6,384,486.96 and 3,408,781.92
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Solution
The fourth proportional to 4,256,319.84, 6,384,486.96 and 3,408,781.92 is: 5,113,178.65
Step by Step Solution
- Step 1: Write the proportion equation
4,256,319.84 : 6,384,486.96 = 3,408,781.92 : x - Step 2: Convert to fraction form
4,256,319.84/6,384,486.96 = 3,408,781.92/x - Step 3: Cross multiply
4,256,319.84x = 6,384,486.96 × 3,408,781.92 - Step 4: Simplify right side
4,256,319.84x = 21,763,323,717,723.76 - Step 5: Solve for x
x = 21,763,323,717,723.76/4,256,319.84 - Step 6: Final answer
x = 5,113,178.65
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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.