Finding the Fourth Proportional to 449,374.11, 619,943.67 and 258,346.95
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Solution
The fourth proportional to 449,374.11, 619,943.67 and 258,346.95 is: 356,408.06
Step by Step Solution
- Step 1: Write the proportion equation
449,374.11 : 619,943.67 = 258,346.95 : x - Step 2: Convert to fraction form
449,374.11/619,943.67 = 258,346.95/x - Step 3: Cross multiply
449,374.11x = 619,943.67 × 258,346.95 - Step 4: Simplify right side
449,374.11x = 160,160,556,316.31 - Step 5: Solve for x
x = 160,160,556,316.31/449,374.11 - Step 6: Final answer
x = 356,408.06
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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.