Finding the Fourth Proportional to 1,561,319.97, 2,155,216.11 and 1,017,588.03
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Solution
The fourth proportional to 1,561,319.97, 2,155,216.11 and 1,017,588.03 is: 1,404,658.98
Step by Step Solution
- Step 1: Write the proportion equation
1,561,319.97 : 2,155,216.11 = 1,017,588.03 : x - Step 2: Convert to fraction form
1,561,319.97/2,155,216.11 = 1,017,588.03/x - Step 3: Cross multiply
1,561,319.97x = 2,155,216.11 × 1,017,588.03 - Step 4: Simplify right side
1,561,319.97x = 2,193,122,115,599.16 - Step 5: Solve for x
x = 2,193,122,115,599.16/1,561,319.97 - Step 6: Final answer
x = 1,404,658.98
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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.