Finding the Fourth Proportional to 628,005.13, 866,638.92 and 341,519.07
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Solution
The fourth proportional to 628,005.13, 866,638.92 and 341,519.07 is: 471,291.88
Step by Step Solution
- Step 1: Write the proportion equation
628,005.13 : 866,638.92 = 341,519.07 : x - Step 2: Convert to fraction form
628,005.13/866,638.92 = 341,519.07/x - Step 3: Cross multiply
628,005.13x = 866,638.92 × 341,519.07 - Step 4: Simplify right side
628,005.13x = 295,973,717,984.20 - Step 5: Solve for x
x = 295,973,717,984.20/628,005.13 - Step 6: Final answer
x = 471,291.88
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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.