Finding the Fourth Proportional to 1,270,121.34, 1,752,752.61 and 689,345.49
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Solution
The fourth proportional to 1,270,121.34, 1,752,752.61 and 689,345.49 is: 951,288.72
Step by Step Solution
- Step 1: Write the proportion equation
1,270,121.34 : 1,752,752.61 = 689,345.49 : x - Step 2: Convert to fraction form
1,270,121.34/1,752,752.61 = 689,345.49/x - Step 3: Cross multiply
1,270,121.34x = 1,752,752.61 × 689,345.49 - Step 4: Simplify right side
1,270,121.34x = 1,208,252,106,789.23 - Step 5: Solve for x
x = 1,208,252,106,789.23/1,270,121.34 - Step 6: Final answer
x = 951,288.72
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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.