Finding the Fourth Proportional to 1,887,278.28, 2,828,923.20 and 1,286,750.76
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Solution
The fourth proportional to 1,887,278.28, 2,828,923.20 and 1,286,750.76 is: 1,928,766.48
Step by Step Solution
- Step 1: Write the proportion equation
1,887,278.28 : 2,828,923.20 = 1,286,750.76 : x - Step 2: Convert to fraction form
1,887,278.28/2,828,923.20 = 1,286,750.76/x - Step 3: Cross multiply
1,887,278.28x = 2,828,923.20 × 1,286,750.76 - Step 4: Simplify right side
1,887,278.28x = 3,640,119,077,581.63 - Step 5: Solve for x
x = 3,640,119,077,581.63/1,887,278.28 - Step 6: Final answer
x = 1,928,766.48
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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.