Finding the Fourth Proportional to 1,680,983.60, 2,519,725.80 and 921,657.20
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Solution
The fourth proportional to 1,680,983.60, 2,519,725.80 and 921,657.20 is: 1,381,526.52
Step by Step Solution
- Step 1: Write the proportion equation
1,680,983.60 : 2,519,725.80 = 921,657.20 : x - Step 2: Convert to fraction form
1,680,983.60/2,519,725.80 = 921,657.20/x - Step 3: Cross multiply
1,680,983.60x = 2,519,725.80 × 921,657.20 - Step 4: Simplify right side
1,680,983.60x = 2,322,323,425,595.76 - Step 5: Solve for x
x = 2,322,323,425,595.76/1,680,983.60 - Step 6: Final answer
x = 1,381,526.52
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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.