Finding the Fourth Proportional to 3,970,587.84, 5,480,384.58 and 2,252,713.92
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Solution
The fourth proportional to 3,970,587.84, 5,480,384.58 and 2,252,713.92 is: 3,109,297.45
Step by Step Solution
- Step 1: Write the proportion equation
3,970,587.84 : 5,480,384.58 = 2,252,713.92 : x - Step 2: Convert to fraction form
3,970,587.84/5,480,384.58 = 2,252,713.92/x - Step 3: Cross multiply
3,970,587.84x = 5,480,384.58 × 2,252,713.92 - Step 4: Simplify right side
3,970,587.84x = 12,345,738,630,319.35 - Step 5: Solve for x
x = 12,345,738,630,319.35/3,970,587.84 - Step 6: Final answer
x = 3,109,297.45
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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.