Finding the Fourth Proportional to 612,381.50, 845,038.60 and 340,432.84
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Solution
The fourth proportional to 612,381.50, 845,038.60 and 340,432.84 is: 469,770.71
Step by Step Solution
- Step 1: Write the proportion equation
612,381.50 : 845,038.60 = 340,432.84 : x - Step 2: Convert to fraction form
612,381.50/845,038.60 = 340,432.84/x - Step 3: Cross multiply
612,381.50x = 845,038.60 × 340,432.84 - Step 4: Simplify right side
612,381.50x = 287,678,890,507.62 - Step 5: Solve for x
x = 287,678,890,507.62/612,381.50 - Step 6: Final answer
x = 469,770.71
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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.