Finding the Fourth Proportional to 1,281,688.38, 1,768,694.99 and 708,708.96
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Solution
The fourth proportional to 1,281,688.38, 1,768,694.99 and 708,708.96 is: 977,999.02
Step by Step Solution
- Step 1: Write the proportion equation
1,281,688.38 : 1,768,694.99 = 708,708.96 : x - Step 2: Convert to fraction form
1,281,688.38/1,768,694.99 = 708,708.96/x - Step 3: Cross multiply
1,281,688.38x = 1,768,694.99 × 708,708.96 - Step 4: Simplify right side
1,281,688.38x = 1,253,489,983,376.57 - Step 5: Solve for x
x = 1,253,489,983,376.57/1,281,688.38 - Step 6: Final answer
x = 977,999.02
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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.