Finding the Fourth Proportional to 2,128,344.56, 3,193,637.82 and 1,230,417.03
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Solution
The fourth proportional to 2,128,344.56, 3,193,637.82 and 1,230,417.03 is: 1,846,273.59
Step by Step Solution
- Step 1: Write the proportion equation
2,128,344.56 : 3,193,637.82 = 1,230,417.03 : x - Step 2: Convert to fraction form
2,128,344.56/3,193,637.82 = 1,230,417.03/x - Step 3: Cross multiply
2,128,344.56x = 3,193,637.82 × 1,230,417.03 - Step 4: Simplify right side
2,128,344.56x = 3,929,506,361,380.08 - Step 5: Solve for x
x = 3,929,506,361,380.08/2,128,344.56 - Step 6: Final answer
x = 1,846,273.59
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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.