Finding the Fourth Proportional to 1,755,564.92, 2,422,011.91 and 1,297,778.63
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Solution
The fourth proportional to 1,755,564.92, 2,422,011.91 and 1,297,778.63 is: 1,790,440.94
Step by Step Solution
- Step 1: Write the proportion equation
1,755,564.92 : 2,422,011.91 = 1,297,778.63 : x - Step 2: Convert to fraction form
1,755,564.92/2,422,011.91 = 1,297,778.63/x - Step 3: Cross multiply
1,755,564.92x = 2,422,011.91 × 1,297,778.63 - Step 4: Simplify right side
1,755,564.92x = 3,143,235,298,403.48 - Step 5: Solve for x
x = 3,143,235,298,403.48/1,755,564.92 - Step 6: Final answer
x = 1,790,440.94
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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.