Finding the Fourth Proportional to 3,886,479.32, 5,830,466.21 and 1,490,137.06
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Solution
The fourth proportional to 3,886,479.32, 5,830,466.21 and 1,490,137.06 is: 2,235,492.09
Step by Step Solution
- Step 1: Write the proportion equation
3,886,479.32 : 5,830,466.21 = 1,490,137.06 : x - Step 2: Convert to fraction form
3,886,479.32/5,830,466.21 = 1,490,137.06/x - Step 3: Cross multiply
3,886,479.32x = 5,830,466.21 × 1,490,137.06 - Step 4: Simplify right side
3,886,479.32x = 8,688,193,769,148.06 - Step 5: Solve for x
x = 8,688,193,769,148.06/3,886,479.32 - Step 6: Final answer
x = 2,235,492.09
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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.