Finding the Fourth Proportional to 2,870,820.12, 3,961,299.42 and 1,630,237.08
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Solution
The fourth proportional to 2,870,820.12, 3,961,299.42 and 1,630,237.08 is: 2,249,481.66
Step by Step Solution
- Step 1: Write the proportion equation
2,870,820.12 : 3,961,299.42 = 1,630,237.08 : x - Step 2: Convert to fraction form
2,870,820.12/3,961,299.42 = 1,630,237.08/x - Step 3: Cross multiply
2,870,820.12x = 3,961,299.42 × 1,630,237.08 - Step 4: Simplify right side
2,870,820.12x = 6,457,857,199,466.49 - Step 5: Solve for x
x = 6,457,857,199,466.49/2,870,820.12 - Step 6: Final answer
x = 2,249,481.66
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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.