Finding the Fourth Proportional to 2,118,717.08, 2,923,768.70 and 1,201,031.12
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Solution
The fourth proportional to 2,118,717.08, 2,923,768.70 and 1,201,031.12 is: 1,657,388.44
Step by Step Solution
- Step 1: Write the proportion equation
2,118,717.08 : 2,923,768.70 = 1,201,031.12 : x - Step 2: Convert to fraction form
2,118,717.08/2,923,768.70 = 1,201,031.12/x - Step 3: Cross multiply
2,118,717.08x = 2,923,768.70 × 1,201,031.12 - Step 4: Simplify right side
2,118,717.08x = 3,511,537,196,381.94 - Step 5: Solve for x
x = 3,511,537,196,381.94/2,118,717.08 - Step 6: Final answer
x = 1,657,388.44
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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.