Finding the Fourth Proportional to 1,107,351.70, 1,661,027.55 and 547,479.70
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Solution
The fourth proportional to 1,107,351.70, 1,661,027.55 and 547,479.70 is: 821,219.55
Step by Step Solution
- Step 1: Write the proportion equation
1,107,351.70 : 1,661,027.55 = 547,479.70 : x - Step 2: Convert to fraction form
1,107,351.70/1,661,027.55 = 547,479.70/x - Step 3: Cross multiply
1,107,351.70x = 1,661,027.55 × 547,479.70 - Step 4: Simplify right side
1,107,351.70x = 909,378,864,765.74 - Step 5: Solve for x
x = 909,378,864,765.74/1,107,351.70 - Step 6: Final answer
x = 821,219.55
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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.