Finding the Fourth Proportional to 405,885.12, 559,876.56 and 268,064.88
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Solution
The fourth proportional to 405,885.12, 559,876.56 and 268,064.88 is: 369,767.79
Step by Step Solution
- Step 1: Write the proportion equation
405,885.12 : 559,876.56 = 268,064.88 : x - Step 2: Convert to fraction form
405,885.12/559,876.56 = 268,064.88/x - Step 3: Cross multiply
405,885.12x = 559,876.56 × 268,064.88 - Step 4: Simplify right side
405,885.12x = 150,083,242,871.21 - Step 5: Solve for x
x = 150,083,242,871.21/405,885.12 - Step 6: Final answer
x = 369,767.79
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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.