Finding the Fourth Proportional to 1,686,746.63, 2,530,122.38 and 689,474.63
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Solution
The fourth proportional to 1,686,746.63, 2,530,122.38 and 689,474.63 is: 1,034,212.93
Step by Step Solution
- Step 1: Write the proportion equation
1,686,746.63 : 2,530,122.38 = 689,474.63 : x - Step 2: Convert to fraction form
1,686,746.63/2,530,122.38 = 689,474.63/x - Step 3: Cross multiply
1,686,746.63x = 2,530,122.38 × 689,474.63 - Step 4: Simplify right side
1,686,746.63x = 1,744,455,175,707.23 - Step 5: Solve for x
x = 1,744,455,175,707.23/1,686,746.63 - Step 6: Final answer
x = 1,034,212.93
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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.