Finding the Fourth Proportional to 449,044.34, 619,681.20 and 306,054.19
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Solution
The fourth proportional to 449,044.34, 619,681.20 and 306,054.19 is: 422,354.79
Step by Step Solution
- Step 1: Write the proportion equation
449,044.34 : 619,681.20 = 306,054.19 : x - Step 2: Convert to fraction form
449,044.34/619,681.20 = 306,054.19/x - Step 3: Cross multiply
449,044.34x = 619,681.20 × 306,054.19 - Step 4: Simplify right side
449,044.34x = 189,656,027,724.23 - Step 5: Solve for x
x = 189,656,027,724.23/449,044.34 - Step 6: Final answer
x = 422,354.79
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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.