Finding the Fourth Proportional to 1,207,988.17, 1,667,029.41 and 664,159.16
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Solution
The fourth proportional to 1,207,988.17, 1,667,029.41 and 664,159.16 is: 916,542.80
Step by Step Solution
- Step 1: Write the proportion equation
1,207,988.17 : 1,667,029.41 = 664,159.16 : x - Step 2: Convert to fraction form
1,207,988.17/1,667,029.41 = 664,159.16/x - Step 3: Cross multiply
1,207,988.17x = 1,667,029.41 × 664,159.16 - Step 4: Simplify right side
1,207,988.17x = 1,107,172,856,808.47 - Step 5: Solve for x
x = 1,107,172,856,808.47/1,207,988.17 - Step 6: Final answer
x = 916,542.80
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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.