Finding the Fourth Proportional to 1,281,138.06, 1,767,893.67 and 708,144.06
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Solution
The fourth proportional to 1,281,138.06, 1,767,893.67 and 708,144.06 is: 977,196.32
Step by Step Solution
- Step 1: Write the proportion equation
1,281,138.06 : 1,767,893.67 = 708,144.06 : x - Step 2: Convert to fraction form
1,281,138.06/1,767,893.67 = 708,144.06/x - Step 3: Cross multiply
1,281,138.06x = 1,767,893.67 × 708,144.06 - Step 4: Simplify right side
1,281,138.06x = 1,251,923,401,122.10 - Step 5: Solve for x
x = 1,251,923,401,122.10/1,281,138.06 - Step 6: Final answer
x = 977,196.32
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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.