Finding the Fourth Proportional to 1,722,205.23, 2,376,972.18 and 1,140,402.21
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Solution
The fourth proportional to 1,722,205.23, 2,376,972.18 and 1,140,402.21 is: 1,573,972.88
Step by Step Solution
- Step 1: Write the proportion equation
1,722,205.23 : 2,376,972.18 = 1,140,402.21 : x - Step 2: Convert to fraction form
1,722,205.23/2,376,972.18 = 1,140,402.21/x - Step 3: Cross multiply
1,722,205.23x = 2,376,972.18 × 1,140,402.21 - Step 4: Simplify right side
1,722,205.23x = 2,710,704,327,180.52 - Step 5: Solve for x
x = 2,710,704,327,180.52/1,722,205.23 - Step 6: Final answer
x = 1,573,972.88
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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.