Finding the Fourth Proportional to 2,126,777.54, 2,934,448.38 and 1,208,934.63
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Solution
The fourth proportional to 2,126,777.54, 2,934,448.38 and 1,208,934.63 is: 1,668,042.95
Step by Step Solution
- Step 1: Write the proportion equation
2,126,777.54 : 2,934,448.38 = 1,208,934.63 : x - Step 2: Convert to fraction form
2,126,777.54/2,934,448.38 = 1,208,934.63/x - Step 3: Cross multiply
2,126,777.54x = 2,934,448.38 × 1,208,934.63 - Step 4: Simplify right side
2,126,777.54x = 3,547,556,266,529.40 - Step 5: Solve for x
x = 3,547,556,266,529.40/2,126,777.54 - Step 6: Final answer
x = 1,668,042.95
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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.