Finding the Fourth Proportional to 3,211,625.20, 4,817,437.80 and 847,721.20
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Solution
The fourth proportional to 3,211,625.20, 4,817,437.80 and 847,721.20 is: 1,271,581.80
Step by Step Solution
- Step 1: Write the proportion equation
3,211,625.20 : 4,817,437.80 = 847,721.20 : x - Step 2: Convert to fraction form
3,211,625.20/4,817,437.80 = 847,721.20/x - Step 3: Cross multiply
3,211,625.20x = 4,817,437.80 × 847,721.20 - Step 4: Simplify right side
3,211,625.20x = 4,083,844,152,741.36 - Step 5: Solve for x
x = 4,083,844,152,741.36/3,211,625.20 - Step 6: Final answer
x = 1,271,581.80
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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.